Agricultural and Biological Sciences › Plant Science

Botany, Ecology, and Taxonomy Studies

Works Count: 103045

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This cluster of papers explores the diversity, phylogeny, medicinal properties, and commercial applications of Cyperus species. It covers topics such as phylogenetic relationships, antioxidant properties, essential oil composition, chromosome evolution, phytochemical analysis, and the use of Cyperus species in traditional medicine and food applications.

Keywords

Cyperus; phylogeny; antioxidant; essential oil; tigernut; chromosome evolution; phytochemical analysis; medicinal plants; biogeography; sedge flora

Classification of Wetlands and Deepwater Habitats of the United States

2004-10-15

Lewis M. Cowardin , Virginia Carter , Francis C. Golet +1 more

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The Jepson Manual: Higher Plants of California

1993-08-01

Edward G. Voss , James C. Hickman

First published in 1925, Willis Linn Jepson's of the Flowering Plants of has been a standard reference for teachers, students, and naturalists. Since that time, hundreds of new species have … First published in 1925, Willis Linn Jepson's of the Flowering Plants of has been a standard reference for teachers, students, and naturalists. Since that time, hundreds of new species have been identified and botanical investigation has become more sophisticated. Now Jepson's philosophy of making such information available to all is again realized in this new volume, which includes a wealth of material accumulated over the past decades. With contributions from two hundred botanists across North America, this is the most comprehensive resource and identification guide to nearly eight thousand varieties of native and naturalized California plants. The means to identify plants (using key traits and illustrations) is accompanied by special information such as horticultural requirements, endangerment, toxicity, weed status, and notes on the management of sensitive species. Identification keys have been designed for ease of use, and terms have been simplified and illustrated, making the new Manual the most authoritative field guide for the expert and amateur alike.

The Vegetation of Wisconsin. An Ordination of Plant Communities.

1961-06-01

P. Greig-Smith , John T. Curtis

Poisonous Plants of the United States and Canada

1964-11-01

John M. Kingsbury

Genetics and conservation of rare plants

1992-07-01

Donald A. Falk , Kent E. Holsinger

Section One: Population biology and genetics of rare species Section Two: Distribution and sampling of genetic variation Section Three: Management and assessment of off-site collections Section Four: Conservation strategies for … Section One: Population biology and genetics of rare species Section Two: Distribution and sampling of genetic variation Section Three: Management and assessment of off-site collections Section Four: Conservation strategies for genetic diversity.

Flora of the Pacific Northwest

1974-05-01

La Rea Dennis Johnston , C. Leo Hitchcock , Arthur Cronquist

A Comparative Study of Germination Characteristics in a Local Flora

1981-11-01

J. P. Grime , G. F. Mason , A. V. Curtis +2 more

seeds for immediate germination. Of the 403 species examined, 158 failed to exceed 10% germination but 128 attained values greater than 80%. Germination was high in the majority of grasses … seeds for immediate germination. Of the 403 species examined, 158 failed to exceed 10% germination but 128 attained values greater than 80%. Germination was high in the majority of grasses and low in many annual forbs and woody species. With respect to initial germinability, major families could be arranged in the series Gramineae > Compositae > Leguminosae = Cyperaceae > Umbelliferae. Many small-seeded species were able to germinate immediately after collection and seeds of these species were often elongated or conical and had antrorse hairs or teeth on the dispersule. High initial germinability was conspicuous among the species of greatest abundance in the Sheffield flora. (4) In the majority of species, germination percentage increased during dry storage; this effect was most marked in small-seeded species. Among the seventy-five species which responded to chilling, some germinated at low temperature in darkness whilst others were dependent upon subsequent exposure to light or to higher temperature or to both. Responses to chilling were characteristic of the Umbelliferae. In all of the legumes examined, rapid germination to a high percentage was brought about by scarification. (5) Under the experimental conditions, all of the annual grasses showed the potential for rapid germination. High rates were also observed in many of the annual forbs and perennial grasses. Low rates of germination occurred in the majority of sedges, shrubs and trees, and were particularly common in species of northern distribution in Britain. Rapid germination was characteristic of the species of greatest abundance in the Sheffield flora. Rate of germination showed a progressive decline with increasing seed weight, and, with some exceptions, there was a positive correlation between rate of germination and the relative growth rate of the seedling. (6) In sixteen species, germination in the light was found to be dependent upon exposure to diurnal fluctuations in temperature. Under constant temperature conditions, the majority of grasses, legumes and composites germinated over a wide range of temperature, and the same feature was evident in species of ubiquitous or southern distribution in the British Isles. A requirement for relatively high temperature was apparent in sedges, in plants of northern distribution and in a majority of the marsh plants. The range of constant temperatures conducive to germination tended to be wider in grassland plants than in woodland species. Rapid germination over a wide range of temperature occurred in many of the species which attain greatest abundance in the Sheffield flora. 0022-0477/81/1100-1017 $02.00 (?1981 Blackwell Scientific Publications

Vegetation of the Great Smoky Mountains

1956-01-01

R. H. Whittaker

Ecoregions of the Conterminous United States

1987-03-01

James M. Omernik

Abstract A map of ecoregions of the conterminous United States has been compiled to assist managers of aquatic and terrestrial resources in understanding the regional patterns of the realistically attainable … Abstract A map of ecoregions of the conterminous United States has been compiled to assist managers of aquatic and terrestrial resources in understanding the regional patterns of the realistically attainable quality of these resources. The ecoregions are based on perceived patterns of a combination of causal and integrative factors including land use, land surface form, potential natural vegetation, and soils. A synoptic approach similar to that used to define these ecoregions is also useful for applications of the map. Initial efforts to use the framework are at the state level of resource management; they center on aquatic ecosystems — mainly attainable ranges in chemical quality, biotic assemblages, and lake trophic state.

Flora of Barro Colorado Island

1979-11-01

F. A. S. , Thomas B. Croat

Development and characterization of polymorphic microsatellite loci in endangered fern Adiantum reniforme var. sinense

2006-02-17

Ming Kang , Pan Li , Xiaohong Yao +1 more

Vegetation of the Siskiyou Mountains, Oregon and California

1960-07-01

R. H. Whittaker

Comparative phylogeography of unglaciated eastern North America

2006-11-14

Pamela S. Soltis , Ashley B. Morris , J. S. McLachlan +1 more

Regional phylogeographical studies involving co-distributed animal and plant species have been conducted for several areas, most notably for Europe and the Pacific Northwest of North America. Until recently, phylogeographical studies … Regional phylogeographical studies involving co-distributed animal and plant species have been conducted for several areas, most notably for Europe and the Pacific Northwest of North America. Until recently, phylogeographical studies in unglaciated eastern North America have been largely limited to animals. As more studies emerge for diverse lineages (including plants), it seems timely to assess the phylogeography across this region: (i) comparing and contrasting the patterns seen in plants and animals; (ii) assessing the extent of pseudocongruence; and (iii) discussing the potential applications of regional phylogeography to issues in ecology, such as response to climatic change. Unglaciated eastern North America is a large, geologically and topographically complex area with the species examined having diverse distributions. Nonetheless, some recurrent patterns emerge: (i) maritime - Atlantic vs. Gulf Coast; (ii) Apalachicola River discontinuity; (iii) Tombigbee River discontinuity; (iv) the Appalachian Mountain discontinuity; (v) the Mississippi River discontinuity; and (vi) the Apalachicola River and Mississippi River discontinuities. Although initially documented in animals, most of these patterns are also apparent in plants, providing support for phylogeographical generalizations. These patterns may generally be attributable to isolation and differentiation during Pleistocene glaciation, but in some cases may be older (Pliocene). Molecular studies sometimes agree with longstanding hypotheses of glacial refugia, but also suggest additional possible refugia, such as the southern Appalachian Mountains and areas close to the Laurentide Ice Sheet. Many species exhibit distinct patterns that reflect the unique, rather than the shared, aspects of species' phylogeographical histories. Furthermore, similar modern phylogeographical patterns can result from different underlying causal factors operating at different times (i.e. pseudocongruence). One underemphasized component of pseudocongruence may result from the efforts of researchers to categorize patterns visually - similar patterns may, in fact, not fully coincide, and inferring agreement may obscure the actual patterns and lead to erroneous conclusions. Our modelling analyses indicate no clear spatial patterning and support the hypothesis that phylogeographical structure in diverse temperate taxa is complex and was not shaped by just a few barriers.

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An Ordination of the Upland Forest Communities of Southern Wisconsin

1957-10-01

J. R. Bray , J. T. Curtis

Desert Ecosystems: Environment and Producers

1973-11-01

Imanuel Noy‐Meir

Gray's Manual of Botany.

1951-03-01

S. F. Blake , Merritt Lyndon Fernald

The Jepson Manual: Higher Plants of California.

1993-10-01

James L. Luteyn , James C. Hickman

Tropical Blackwater Rivers, Animals, and Mast Fruiting by the Dipterocarpaceae

1974-07-01

Daniel H. Janzen

SANT Herbarium vascular plants collection

2021-01-01

David García San León

Vascular plants collection at SANT Herbarium Vascular plants collection at SANT Herbarium

STUDIES IN THE WATER RELATIONS OF THE COTTON PLANT

1950-03-01

P. E. Weatherley

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Vascular plant specimens of National Museum of Nature and Science (TNS)

2024-01-01

Atsushi Ebihara

Vascular plant specimens deposited at the Department of Botany, National Museum of Nature and Science (TNS). Vascular plant specimens deposited at the Department of Botany, National Museum of Nature and Science (TNS).

Journal of the Washington Academy of Sciences.

1918-01-01

H. R. B.

E. C. Smith Herbarium (ACAD) - Cape Breton University Collection

2018-01-01

Ruth E. Newell , Jennifer Richard

Today, the E. C. Smith Herbarium contains over 200,000 specimens, including vascular plants, bryophytes, and fungi. It is the largest herbarium in Atlantic Canada and the first Canadian herbarium to … Today, the E. C. Smith Herbarium contains over 200,000 specimens, including vascular plants, bryophytes, and fungi. It is the largest herbarium in Atlantic Canada and the first Canadian herbarium to have a digital database with scanned images of the collection. The Acadia Herbarium began as an initial gift to Dr. H. G. Perry of a small collection made by G. U. Hay of St. John, New Brunswick. Included in this collection were a few plants collected by J. Fowler of New Brunswick before he went to Queen's University. These first specimens were collected between 1868 and 1880. Some of the plants were cultivated and some were from the United States. Subsequently, in these early years, the additions were made chiefly through the work of Dr. H. G. Perry and his students. No records were available until the collection numbered some 6,000 sheets. Included in the 6,000, however, are a number of sheets from the Gray Herbarium Expeditions to Nova Scotia in 1920 and 1921. Of the specimens above the 6000 count, the majority have been added by the work of Dr. M. V. Roscoe and her students from 1928-1940 and Dr. H. P. Banks and his students from 1940-1946. In 1946 a large collection was being assembled by Mr. David Erskine, who catalogued the Flora of Wolfville and vicinity. During Dr. E. C. Smith's tenure at Acadia (1947-1971) the number of specimens grew from 20,000 sheets to over 70,000. In 1970, Acadia University's Board of Governors announced that the department's excellent collection of plants would be named the E. C. Smith Herbarium as tribute to him for his contributions to the collection.

North Carolina State University Vascular Plant Herbarium

2024-01-01

Symb-Seinet

CHSC - CSU Chico, Chico State Herbarium - Vascular Plants

2023-01-01

Cch

The Chico State Herbarium is the most complete repository of plant specimens from northeastern California. The emphasis is on the northern California flora, and includes a great number of rare, … The Chico State Herbarium is the most complete repository of plant specimens from northeastern California. The emphasis is on the northern California flora, and includes a great number of rare, threatened, and endangered plant species. Established with specimens donated by the late Professor Vesta Holt in the 1950's, the Herbarium now contains more than 125,000 dried and mounted specimens. The majority of samples are flowering plants, conifers, and ferns, but bryophytes, lichens, and especially slime molds, are also well represented. The Herbarium is used extensively for identification of sensitive and other plant species by various agencies and individuals. Loans of herbarium specimens are made to any higher academic institutions who request them.

United States National Plant Germplasm System Collection

2018-01-01

Registry-Migration.Gbif.Org

United States National Plant Germplasm System Collection United States National Plant Germplasm System Collection

SDSU - Vascular Plants of the San Diego State University Herbarium

2023-01-01

Cch

The San Diego State University Herbarium (SDSU) is a depository of over 25,700 pressed and mounted specimens of vascular plants and over 400 specimens of algae, used in research and … The San Diego State University Herbarium (SDSU) is a depository of over 25,700 pressed and mounted specimens of vascular plants and over 400 specimens of algae, used in research and teaching. We have also initiated a bryophyte and lichen collection. The purpose of these specimens is: 1) to serve as voucher documentation for research projects; 2) to serve as resources for plant identification; and 3) to serve as exemplars in plant courses. In addition, the herbarium both receives and provides loans of plant specimens used in active systematic research. The herbarium collection specializes in land plant specimens from San Diego County, California, and Baja California, with some collections from Australia, Chile, and the south Pacific.

Pittsburg State University, Theodore M. Sperry Herbarium

2023-01-01

Symb-Seinet

The ca. 50,300 specimens document the distribution and natural variation of vascular plants and bryophytes, primarily from Kansas, adjacent states, and North America, but also 61 foreign countries. Over 11,000 … The ca. 50,300 specimens document the distribution and natural variation of vascular plants and bryophytes, primarily from Kansas, adjacent states, and North America, but also 61 foreign countries. Over 11,000 new collections have been added the past decade, mostly comprising student collections. Ca. 2500 specimens are backlogged, mostly from North America but also ca. 500 from Madagascar and many hundreds of bryophytes. Many specimens are unicates. Important holdings from abroad include the Democratic Republic of the Congo (T. M. Sperry), Peru (H. Tuomistso), Myrtaceae (H.S. MacKee and others from New Caledonia; Eugenia and Syzygium from Madagascar), Poaceae (worldwide), and 30 isotypes. Ca. 6300 bryophytes are data based on the Consortium of Bryophyte Herbaria (https://bryophyteportal.org) or this website. Ca. 40 percent of the specimens include phenological data; over 15 percent are vouchers for published research; and ca. 44 percent include geocoordinates. Student and volunteer curatorial assistance, as well as generous financial support from the National Science Foundation (CSBR 1756276), is gratefully acknowledged. Homepage: https://www.pittstate.edu/biology/the-sperry-herbarium.html

University of North Carolina at Chapel Hill Herbarium: Vascular Plants

2024-01-01

Symb-Seinet

SEWBReC Vascular Plants (South East Wales)

2023-01-01

Uknbn

All plant species records held by SEWBReC for the South East Wales region. This includes the taxonomic groups "flowering plant", "fern", "ginkgo", "conifer", "clubmoss", "horsetail" and "quillwort" (as defined by … All plant species records held by SEWBReC for the South East Wales region. This includes the taxonomic groups "flowering plant", "fern", "ginkgo", "conifer", "clubmoss", "horsetail" and "quillwort" (as defined by the Recoder 6 Species Dictionary).

Auburn University, John D. Freeman Herbarium

2024-01-01

Symb-Seinet

The John D. Freeman Herbarium (AUA) at Auburn University houses the state's largest collection of dried flowering plants, gymnosperms, ferns, bryophytes, fungi, and lichens. Concentrating on specimens collected in Alabama … The John D. Freeman Herbarium (AUA) at Auburn University houses the state's largest collection of dried flowering plants, gymnosperms, ferns, bryophytes, fungi, and lichens. Concentrating on specimens collected in Alabama and the southeastern US over the past one hundred years, we are now diversifying our plant holdings from around the world through exchanges and gifts. This valuable botanical resource provides critical information to students and scientists across many disciplines as well as to the general public.

Rutgers University, Chrysler Herbarium

2024-01-01

Symb-Seinet

The Chrysler Herbarium (CHRB) at Rutgers University is the last internationally recognized herbarium still in existence in the state of New Jersey (USA). Over 150,000 vascular plant and algal collections, … The Chrysler Herbarium (CHRB) at Rutgers University is the last internationally recognized herbarium still in existence in the state of New Jersey (USA). Over 150,000 vascular plant and algal collections, about 7,000 moss and liverwort specimens, and 2,600 lichen specimens form our collection and are arranged and catalogued systematically. The collection is worldwide in scope, with an emphasis on New Jersey and the Mid-Atlantic area, and contains specimens back to the early 1800s. The Rutgers Mycological Herbarium (RUTPP), which is housed together with CHRB, has been estimated to contain more than 40,000 fungal collections, and has a strong focus on microfungi and plant pathogens. Dr. James White is the curator of the mycological collections, and Dr. Lena Struwe is the Director of the Chrysler Herbarium.

MHA Herbarium: collections of vascular plants

2024-01-01

Alexey P. Seregin , Nina Yu. Stepanova

The official name of the collection is the Skvortsov Herbarium of the Main Botanical Garden, Russian Academy of Sciences (acronym MHA). In 2020, the herbarium was named after well-known Russian … The official name of the collection is the Skvortsov Herbarium of the Main Botanical Garden, Russian Academy of Sciences (acronym MHA). In 2020, the herbarium was named after well-known Russian botanist Alexey Konstantinovich Skvortsov (1920–2008). For 36 years, he was the scientific supervisor of the MHA Herbarium. 1. History. The herbarium was launched soon after the founding of the Main Botanical Garden of the Academy of Sciences of the USSR in 1945. Initially, some minor collections of dry plants were stored in workrooms of the staff. In 1958, upon the construction of the main lab building, the herbarium received a hall of 280 square meters. A special working group headed by V.N. Voroshilov formed the herbarium staff. Upon formal establishment, the MHA Herbarium received an almost complete set of exsiccates “Herbarium of the Flora of the USSR” from the Komarov Botanical Institute (Leningrad) and all botanical collections from the Timiryazev Institute of Plant Physiology (Moscow), including duplicates of important Moscow collections by D.P. Syreyshchikov, the first curator of the Moscow University Herbarium. These initial holdings were supplemented by the collections from Voronezh and Moscow Oblasts by V.N. Voroshilov, B.M. Kulkov and V.A. Shtamm (Stepanova et al. 2020). In 1966, A.K. Skvortsov became the scientific supervisor of the MHA Herbarium. The main vectors of the herbarium development were formed in this time: “Our collections should provide: 1) orientation in the flora, which can serve as a source of the material for introduction; 2) documentation of the introduction <...> The location of the herbarium in the center of European Russia obliges us to create a regional herbarium” (Skvortsov and Proskuryakova 1973). Skvortsov formed the main sections of the herbarium—the Russian Far East, Siberia, Middle Asia, the Caucasus, the Moscow Region, the European part (European Russia and adjacent republics of the former USSR), the Crimea; General Herbarium (foreign countries); Herbarium of Introduction; Dendrological Herbarium; type collection; Skvortsov’s personal herbarium (taxonomic collections of Salix, Populus, Betula, Epilobium, as well as materials on the flora of the Middle Russia and Lower Volga). Some Russian-language references describe the main milestones in the history of the MHA Herbarium (Skvortsov and Proskuryakova 1973, Skvortsov 1977, Belyanina and Makarov 1994, Skvortsov and Belyanina 2005, Ignatov et al. 2010, Ignatov 2015, Stepanova et al. 2020). Current digitization activities allow us to detail the list of collectors, the time and place of their work, the number of the collected specimens and its taxonomic composition. 2. The current state. As of January 2020, the MHA Herbarium holds 615223 specimens of vascular plants and ca. 70000 specimens of bryophytes. This is the fourth largest herbarium of Russia after the Komarov Institute, RAS in St. Petersburg (LE), Moscow State University (MW) and the Joint Novosibirsk Herbarium, RAS (NS + NSK). The general geographical structure of the MHA Herbarium is given in Table 1. The annual growth of the collections since 2015 was ca. 5900 accessions of vascular plants and ca. 2000 accessions of bryophytes. The herbarium of vascular plants is located in two halls (334 square meters) in the main lab building of the Garden. Duplicates and unmounted backlog are stored in several rooms (120 square meters) at Botanicheskaya Street, 33-4 (ten minute walk from the main building). The herbarium of bryophytes is also stored at Botanicheskaya Street in several rooms (180 square meters). Currently, the MHA Herbarium has 12 staff members (of which six are working with vascular plants). There are eight curators & researchers, a mounter, and three employees who are digitizing and filing the specimens. The staff members conduct field research across Russia in Tver, Tula, Kaluga, Belgorod, Rostov, Saratov, Volgograd, Orenburg Oblasts, Kalmykia, Dagestan, Ingushetia, Stavropol Krai, Yakutia, etc. The total duration of expeditions is ca. 240 person-days per year. Fresh collections of the employees forms 70% of new accessions. Other accessions are coming from the exchange, gifts and old backlog. In 2018–2019, the herbarium staff imaged the Moscow section (100%) and the Eastern European section (14.1%) of the MHA Herbarium. In total, 64008 specimens were digitized (600 dpi images and key metadata). These data were published in the Moscow Digital Herbarium in 2019–2020 and fully available in GBIF. Based on these data, a detailed overview of the physical collections of these two sections is given below, as well as spatial, temporal, and taxonomic description of the dataset. As of May 2020, 50324 specimens from MHA Herbarium have georeferences (78.6%) and 39448 specimens have fully captured label transcriptions (61.6%). 3. Moscow section holds 49621 specimens and covers two subjects of the Russian Federation—the City of Moscow and Moscow Oblast. The section is completely imaged and curated as a separate unit. Physical separation of the Moscow section from other collections is a result of geographical location of the MHA Herbarium and high intensity of the field research in the area. Full list of collectors consists of 823 surnames, including 127 people who collected more than 10 specimens. The list of top collectors of the Moscow section is given in table 2. The basis of the Moscow section was formed by ca. 2000 specimens by D.P. Syreyshchikov and ca. 700 specimens by P.A. Smirnov collected in 1920s and received from the Timiryazev Institute of Plant Physiology (Moscow). The staff collected later accessions right in the Garden (Ostankino in Moscow) and various areas across the Moscow Oblast – V.N. Voroshilov (1940–1950s), T.N. Evtyukhova (1940s), V.A. Shtamm (1940–1960s), G.P. Rysina (1960s), B.M. Kulkov (1940–1950s). The donations of V.I. Sobolevsky (1950s), A.A. Nekrasov (1950–1960s), A.I. Manin (1960–1970s), A.P. Khokhryakov (1950–1960s) and others from different areas of the Moscow region enriched the section as well. In 1970–1990s, V.V. Makarov, M.S. Ignatov, A.N. Shvetsov, V.D. Bochkin, E.E. Gogina, A.E. Matsenko made the largest collections across the Moscow region due to the research missions of the Garden employees devoted to rare and endangered plant species, audit and organization of the protected areas with a focus on the districts west of Moscow. Also, the Garden staff studied intensively the alien flora of the Moscow region. This resulted in the special collections by A.K. Skvortsov, V.V. Makarov, M.S. Ignatov, A.N. Shvetsov, expanded later by V.D. Bochkin assisted by S.R. Mayorov, Yu.A. Nasimovich and Yu.K. Vinogradova. Their collections became the basis of monographic reviews on the alien flora of the Moscow region (Ignatov et al. 1990, Mayorov et al. 2012, Mayorov et al. 2020). E.I. Kurchenko (Serpukhov District), N.M. Reshetnikova (Ruza District), V.B. Kuvaev (Znamenskoye near Moscow), Yu.A. Nasimovich with L.A. Deystfeldt (several districts) donated their collections from the Moscow region (Skvortsov and Belyanina 2005). In the last decade, K.Yu. Teplov transferred large collections of rare plants from the locations across the region. 4. Eastern European section covers plant collections from European Russia, the Urals, the Baltic countries, Belarus, Ukraine, Moldova, and Western Kazakhstan (west of the Ural River). The section does not include Moscow region, the Caucasus and the Crimea. Today, the section contains 101034 specimens, incl. 14288 imaged specimens (14.1%). Thus, statistics on collectors and collection dates for this section are based on a 14-percent sample that covers pteridophytes, conifers, and most monocots. The collection consists mainly of specimens of the Garden staff collected during field trips since the 1950s. Initially, herbarium vouchers accompanied living plants and seeds collected in wild for the expositions of the Garden. This documentation activity was later supplemented by extensive floristic and taxonomic studies, conservation research and monitoring of alien species. 4.1. Lower Volga. The flora of the southeast of European Russia is the most fully represented regional flora of the Eastern European section. The region known as Lower Volga includes Volgograd, Astrakhan, and Saratov Oblasts and the Republic of Kalmykia. This is a predominantly semi-arid steppe region. The list of collectors includes 136 surnames (see top-collectors in Table 3), but for 53 people only one specimens have been digitized so far. A.K. Skvortsov began the studies of the Lower Volga region in 1950s. In 1970–1990s, floristic expeditions were regular and the key collectors of that time were A.K. Skvortsov, A.E. Matsenko, V.V. Makarov, N.B. Belyanina, I.A. Shantser, V.D. Bochkin, as well as staff members of the Volgograd Pedagogical University (N.G. Volodina, V.A. Sagalaev, G.Yu. Klinkova). In 2010s, the collection activities were continued by N.Yu. Stepanova assisted by A.V. Kuvaev (Severtsov Institute) and I.N. Safronova (Komarov Institute) during their floristic studies of the Kuma-Manych depression and the Caspian Lowland. Vast materials helped to assess critically the current state of the flora of the southeast of European Russia and to publish two volumes of the “Flora of the Lower Volga” (Skvortsov 2006, Reshetnikova 2018). The third volume of the series is expected in near future. 4.2. Other areas. The MHA Herbarium covers with varying degree of completeness all regions of Eastern Europe within the former USSR. Table 4 shows the main collections from this territory, excluding Lower Volga. Borders of the curatorial areas used in the Moscow Digital Herbarium (https://plant.depo.msu.ru/) are available online. A large number of specimens from the Central forest-steppe region resulted from the recent floristic studies by staff member N.M. Reshetnikova (Belogorye Reserve, Belgorod Oblast) and graduate student A.K. Mamontov (Veidelevsky District, Belgorod Oblast). Collections by V.N. Voroshilov (Voronezh Oblast), V.V. Makarov (Tambov Oblast), and A.P. Khokhryakov (Penza Oblast) should be acknowledged either. Collections from the Western region (Smolensk and Bryansk Obkasts) were also made mainly by the herbarium staff (A.K. Skvortsov, V.V. Makarov, N.B. Belyanina). Yu.E. Alekseev from Moscow University donated his collections from Bryansk Oblast as a gift. A large number of collections from the Central region are associated with lengthy floristic studies by N.M. Reshetnikova in Kaluga Oblast expanded significantly by A.K. Krylov by the study of alien plants (Reshetnikova et al. 2010). In addition, the herbarium was enriched by the collections of V.D. Bochkin and V.V. Makarov from Kaluga, Tula and Vladimir Oblasts. Lesser collections were donated by V.I. Sobolevsky (Kaluga Oblast) and A.P. Seregin (Vladimir and Tula Oblasts). The West-Ukrainian region is represented mainly by collections from the Carpathians donated by V.I. Sobolevsky and A.P. Khokhryakov, and minor gatherings by the expedition headed by A.K. Skvortsov. Major collections from the Eastern region were donated by L.A. Utkin (Southern Urals), A.P. Khokhryakov and M.T. Mazurenko (Bashkiria). A.K. Skvortsov also collected a lot in the 1950s in the Denezhkin Kamen Reserve (Sverdlovsk Oblast) and Zlatoust (Chelyabinsk Oblast). Important collections from other areas include: • Northern region—A.K. Skvortsov (Western Polar Urals, Khibiny), T.M. Smirnova (Karelia, Kola Peninsula), M.S. Ignatov (Arkhangelsk Oblast, Nenets Autonomous Okrug); • Rostov Region—N.Yu. Stepanova (Kumo-Manch Depression and adjacent areas); • Western Siberia—A.K. Skvortsov (Eastern Polar Urals); • Lithuania and the North-Ukrainian region—V.V. Makarov.

Botanical Research Institute of Texas, Philecology Herbarium

2024-01-01

Symb-Seinet

The core of BRIT’s herbarium is the Lloyd H. Shinners Collection in Systematic Botany, begun at Southern Methodist University in Dallas, Texas, in 1944. The Botanical Research Institute of Texas … The core of BRIT’s herbarium is the Lloyd H. Shinners Collection in Systematic Botany, begun at Southern Methodist University in Dallas, Texas, in 1944. The Botanical Research Institute of Texas was formed in 1987 to house the transfer of this collection, which moved to Fort Worth in 1991. Areas of geographic concentration encompass Texas, the southeastern United States, Mexico, Central America, South America, and Southeast Asia. The BRIT herbarium holdings are worldwide in scope, and represent most of the earth’s plant families.

SBBG - Clifton Smith Herbarium, Santa Barbara Botanic Garden

2023-01-01

Cch

The SBBG natural history collections house the region's largest scientific collection of preserved Central Coast and California Channel Islands vascular plants, bryophytes, lichens, and macrofungi. Across these collections, the Garden … The SBBG natural history collections house the region's largest scientific collection of preserved Central Coast and California Channel Islands vascular plants, bryophytes, lichens, and macrofungi. Across these collections, the Garden curates approximately 214,000 specimens. Vascular plant specimen data are served on this portal (https://cch2.org/). Lichen specimen data are served on the Consortium of North American Lichen Herbaria (https://lichenportal.org/cnalh/). Macrofungus specimen data are served on the Mycology Collections Portal (https://mycoportal.org/portal/index.php). Bryophyte data are served on the Consortium of Bryophyte Herbaria (https://bryophyteportal.org/portal/).

Correction: Impact on the scape of Farfugium japonicum var. japonicum (Asteraceae) under strong wind conditions based on morphological and mechanical analyses

2025-06-25

Masayuki Shiba , S. Arihara , Shiori Harada +1 more | Frontiers in Plant Science

Carex of Illinois and Surrounding States: The Oval Sedges

2025-06-23

Paul M. McKenzie | Journal of the Botanical Research Institute of Texas

This incredible book follows recent publications of excellent photographic field guides that cover the Midwest: (e.g., P.E. Rothrock. 2009. Sedges of Indiana and the adjacent states-the non-Carex species-(Vol. I); W.R. … This incredible book follows recent publications of excellent photographic field guides that cover the Midwest: (e.g., P.E. Rothrock. 2009. Sedges of Indiana and the adjacent states-the non-Carex species-(Vol. I); W.R. Smith and R. Haug. 2018. Sedges and rushes of Minnesota: The complete guide to species identification; P.E. Rothrock. 2021. Sedges of Indiana and the adjacent states—the Carex species-(Vol. II); J. Ogle, T. Witsell, and J. Gentry. 2022. Trees, shrubs, and vines of Arkansas. Reviews of each are provided by McKenzie (2009, 2020, 2021, 2022). Any book on the genus Carex that includes stellar reviews and/or input from three of most renowned experts on the genus: A. Reznicek, A. Hipp, and P. Rothrock has to be good, and this field guide will not disappoint!

Botany of the 1860 Chadbourne Expedition from Williams and Bowdoin colleges to Labrador and Greenland. Part 1: Greenland

2025-06-23

Arthur V. Gilman | Journal of the Botanical Research Institute of Texas

In 1860 Paul A. Chadbourne, Professor at both Williams College and Bowdoin College, arranged a scientific expedition to Labrador and Greenland. Traveling by schooner, the party of nineteen comprised nine … In 1860 Paul A. Chadbourne, Professor at both Williams College and Bowdoin College, arranged a scientific expedition to Labrador and Greenland. Traveling by schooner, the party of nineteen comprised nine students and two recent graduates from Williams, three from Bowdoin, two from Harvard, and three others, plus the Professor and the ship’s owner and captain, Charles E. Ranlett of Thomaston, Maine. They departed Thomaston on 27 June, left seven members of the party on Caribou Island in the Straits of Belle Isle, and proceeded toward West Greenland, hoping to make landfall at Paamiut (Frederickshåb). Instead, they were forced northward by storm-driven pack ice ca. 250 miles before making landfall near Maniitsoq (Sukkertoppen), where they collected plant and animal specimens 19–30 July. They then sailed south ca. 100 miles to the capital, Nuuk (Godthåb), where they collected additional plant specimens and purchased or were gifted various other natural history and cultural materials. Leaving Nuuk on 14 August, they returned to Caribou Island, boarded the students who had made similar collections there, and returned to Maine on 11 September. The Expedition’s Greenland plant collections, comprising more than 220 specimens and representing 93 taxa, are in two main two groups. The smaller collection, with 64 specimens, was purchased from Professor Chadbourne and donated anonymously to Bowdoin College in 1881 and is now at the Pringle Herbarium. The other, larger, set of more than 175 specimens collected by Williams ’61 student William P. Alcott was deposited at Williams College and is currently housed at Muskingum University in New Concord, Ohio. A few additional Alcott specimens, apparently sent to others for identification, are in other U.S. herbaria. These sets of collections and images were studied, identified, and revised as necessary and are published here for the first time. The Chadbourne Expedition specimens constitute the earliest large, systematically collected set of herbarium records for central West Greenland and should be considered historically significant.

Vascular Plants of New Mexico

2025-06-23

Barney Lipscomb | Journal of the Botanical Research Institute of Texas

A field-portable guide to all known and documented vascular plants in New Mexico. A field-portable guide to all known and documented vascular plants in New Mexico.

Field Guide to the Grasses of Oregon and Washington. Second Edition

2025-06-23

Barney Lipscomb | Journal of the Botanical Research Institute of Texas

Field Guide to Grasses of Oregon and Washington (1st ed., 1999) was reviewed in J. Bot. Res. Inst. Texas 14(1), 2020. The reviewer noted that the Field Guide “is a … Field Guide to Grasses of Oregon and Washington (1st ed., 1999) was reviewed in J. Bot. Res. Inst. Texas 14(1), 2020. The reviewer noted that the Field Guide “is a comprehensive source of information on all 101 genera and 376 species, subspecies, and varieties of grasses known to occur in the natural environment of Oregon and Washington.” The second edition treats 394 species, 18 additional species more than the first edition. The new edition also includes “updated names, new keys, and improved photographs and maps.”The labeled macrophotographs illustrated beautifully the hard-to-see diagnostic features, critical for identification.

Taxonomic revision of the Packera crocata/dimorphophylla (Asteraceae: Senecioneae) complex in the southern Rocky Mountains (U.S.A.)

2025-06-23

Charles F. Keller , Erika R. Moore‐Pollard , Ross A. McCauley | Journal of the Botanical Research Institute of Texas

In the Southern Rocky Mountains, Packera crocata and P. dimorphophylla form a complex of intergrading forms leading to difficulty in distinguishing taxa. Here we review the morphological variation in the … In the Southern Rocky Mountains, Packera crocata and P. dimorphophylla form a complex of intergrading forms leading to difficulty in distinguishing taxa. Here we review the morphological variation in the context of regional phylogenetic data from two independent datasets to recircumscribe the taxa. We show the complex to consist of three taxa, P. crocata, P. dimorphophylla var. dimorphophylla, and P. intermedia, a new combination for a little-recognized taxon previously treated as a variety of P. dimorphophylla.

Long-Term Survival Rate and Outcomes for Amandys Implant: A 10-Year Minimum Follow-up of 84 Cases

2025-06-23

Caroline Berry , Y. Kerjean , Thierry Loubersac +2 more | Journal of Wrist Surgery

Abstract Amandys is a radiocarpal pyrocarbon interposition implant indicated for degenerative wrists, showing promising medium-term results. The aim of this study was to evaluate the outcomes of the implant with … Abstract Amandys is a radiocarpal pyrocarbon interposition implant indicated for degenerative wrists, showing promising medium-term results. The aim of this study was to evaluate the outcomes of the implant with a minimum follow-up of 10 years. This retrospective monocentric study included 84 implants in 76 patients who underwent the procedure. Preoperative and follow-up assessments included clinical evaluation, functional scores, and X-rays measurements. A total of 41 implants in 39 patients were evaluated at a mean follow-up of 12.64 years. At the final follow-up, average scores for pain (visual analogue scale) was 2.3, Patient-Rated Wrist Evaluation 26.3, QuickDASH 30.8. Grip strength was 71% of contralateral side. Flexion and extension were, respectively, 32 and 37 degrees. The satisfaction rate was 94.9%. There were 10 revision surgeries (13.6%); the survival rate was 86.4%. Radiological findings remained stable over time. The Amandys implant proves to be a durable alternative to wrist fusion and arthroplasty. The survival rate does not deteriorate at long term. Level of Evidence IV.

First record of Pleioblastus fortunei (Poaceae) from the Arkansas (U.S.A.) flora

2025-06-23

Brett Serviss , Jonathan R. Kratz | Journal of the Botanical Research Institute of Texas

The first naturalized occurrence of Pleioblastus fortunei (Poaceae) in the Arkansas flora is reported here from Columbia County. In 2024, a large, naturalized population of P. fortunei was discovered in … The first naturalized occurrence of Pleioblastus fortunei (Poaceae) in the Arkansas flora is reported here from Columbia County. In 2024, a large, naturalized population of P. fortunei was discovered in highly disturbed riparian habitat adjacent to a large residential area, within the city of Magnolia. Plants were sterile but aggressively establishing via rhizomatous offsets. The precise origin of the naturalized plants is unknown, although establishment from once cultivated plants of the species is suspected, as a residence adjacent to the location of the naturalized plants had a large colony of P. fortunei that had spread throughout much of the property.

Floristic inventory of Meghalithic Site Hirebenakal, Koppal District, Karnataka, India

2025-06-20

M. Siddeshwari , K. Kotresha | Asian Journal of Research in Botany

The Secret of Hot-headed Teasel (Dipsacus fullonum L. (Caprifoliaceae))

2025-06-20

Ofrit Shavit , Peter G. Kevan | Israel Journal of Plant Sciences

Abstract Temperature regimes within flowers and inflorescences are not well studied but have been shown to be important in plant sexual reproduction (pollination). We report for the first time the … Abstract Temperature regimes within flowers and inflorescences are not well studied but have been shown to be important in plant sexual reproduction (pollination). We report for the first time the effects of ambient air temperatures and insolation (sunny vs. cloudy vs. night) on temperatures within the various sizes of the complex flowering head of teasel ( Dipsacus fullonum ). Blossom temperatures influence pollination in various ways, notably through the growth and maturation of the sexual organs and by being perceived by and influencing pollinator behaviour. We report that the inflorescences of common teasel become warmed above the adjacent ambient air by absorbing solar radiation and trapping heat. Inflorescence size, time of day and insolation have notable impacts on temperatures within teasel inflorescences. Large inflorescences (about 50 mm long × 30 mm in diameter) become as much as 8 C warmer than the ambient air at the time of day when the sun was strongest (ca. 10:00–14:00 EST), mid-sized ones (about 30 mm long × 20 mm diameter) about 5 C and small ones (about 20 mm long × 10 mm diameter) about 3 C. Temperature excesses observed under sunny conditions are abolished at night and under cloud. Pollinator activity, mostly by bumblebees ( Bombus ) on teasel heads follows the same trends as the temperature regimes, being most intense in warm sunny conditions. That correlation may reflect some relationships between floral biology and pollinator behaviour, such as floral heat, effects on nectar secretion, viscosity and availability, pollen presentation, and maturation of florets.

Correction: On the ecological value of the pseudopetiole in Cyperaceae and its usefulness in Liliopsida

2025-06-19

Lucas Alves-dos-Santos , Ana Paula do Nascimento Prata , Delmira da Costa Silva +1 more | Revista Brasileira de Botânica

Photosynthetic physiology and photosynthate allocation among three tuber types of chufa (Cyperus esculentus L. var. sativus Boeck)

2025-06-19

Kaihong Bai , Yan Zhang , Yating Zhang +4 more | Field Crops Research

TAXONOMIC REVISION OF THE FAMILY CASUARINACEAE R. BR., 1814 (ORDER, FAGALES) IN EGYPT

2025-06-19

Fatema Mohamed , Rim Hamdy , Essam M. Abd El-Kader | Bulletin of The Iraq Natural History Museum

The taxonomic features of the Casuarinaceae family were carefully examined to determine which characters were most trustworthy for taxonomic delimitation. Morphological characteristics that represented habit, leaf teeth, article, phyllichnia, male … The taxonomic features of the Casuarinaceae family were carefully examined to determine which characters were most trustworthy for taxonomic delimitation. Morphological characteristics that represented habit, leaf teeth, article, phyllichnia, male spike, female cone, samara, and seed were used in our evaluation. Fieldwork revealed that seven taxa were present, among which four species belonged to the genus Casuarina L., 1759. On the other hand, herbarium studies identified the previous record of three species belonging to the genus Allocasuarina L.A.S. Johnson, 1982, nevertheless could not be found in the field. Casuarina cunninghamiana Miq., 1848 and Casuarina equisetifolia L., 1759 were represented in Egypt by the subspecies cunninghamiana and the subspecies incana (Benth.) L.A.S. Johnson, 1982 respectively. For each taxon, a thorough description of the family, genus, and species was given, along with images and synonyms. Moreover, a constructed identification key to the taxa of Casuarinaceae is included. This investigation demonstrated the significance of morphological characteristics for taxonomic assessment among the Casuarinaceae taxa surveyed in Egypt. The numerical analysis supported the separation of the two genera, Allocasuarina and Casuarina.

“Long Live the Weeds and the Wilderness Yet”: Critical Plant Studies and Gerard Manley Hopkins’ Plant Poetics

2025-06-19

Dilek Bulut Sarıkaya | Litera:dil,edebiyat ve kültür araştırmaları dergisi

The Influence of Land Use Alternatives on Traditional Ohlone Floristic Resources

2025-06-19

Naseem Fazeli , Will Russell , Alan Leventhal +1 more | Human Ecology

Virginia and North Carolina, South Carolina and Georgia, Florida, Alabama, Mississippi, Arkansas

2025-06-18

| University Press of Mississippi eBooks

Lippia carrascoana (Verbenaceae), an enigmatic new species from the Brazilian Caatinga

2025-06-18

Pedro Henrique Cardoso , GABRIEL BARROS DA SILVA , Marcelo Trovó +1 more | Phytotaxa

Despite their non-monophyletic status under current circumscriptions, Lantana and Lippia (Lantaneae, Verbenaceae) remain traditionally distinguished by fruit morphology. The former exhibits drupes with a single pyrene, while the second bears … Despite their non-monophyletic status under current circumscriptions, Lantana and Lippia (Lantaneae, Verbenaceae) remain traditionally distinguished by fruit morphology. The former exhibits drupes with a single pyrene, while the second bears schizocarps that split into two cluses or drupaceous fruits with two pyrenes. While examining herbarium collections from Brazil, we discovered a new species of Lantaneae characterized by the unique combination of the following traits: leaf blades with margins entire near the base or up the middle and conspicuously dentate towards the apex, abaxial surfaces covered with abundant sessile glandular trichomes and strigose along the veins, bracts with attenuate or aristate apices, lilac or white corollas lacking eglandular trichomes externally, densely sericeous ovaries, and drupaceous fruits with a pilose external surface. We describe this species as Lippia carrascoana, endemic to the Caatinga domain in the states of Ceará, Pernambuco, and Piauí. It grows in carrasco vegetation on dystrophic red-yellow latosols, at elevations between 500 and 830 m. Although Lippia carrascoana has been collected since 1978, its specimens were either misidentified or identified only at the generic level as Lantana sp. or Lippia sp. The detailed description of the new species is accompanied by illustrations, distribution notes, an occurrence map, as well as comparisons with similar species (Lantana restingensis, Lippia brasiliensis, Lippia magentea, Lippia maximilianii), and some species that, despite being morphologically distinct, have been involved in past misidentifications (Lantana camara, Lantana canescens, Lantana fucata). A preliminary conservation status assessment suggests that Lippia carrascoana qualifies as Endangered (EN).

South Carolina, Georgia, Alabama, Mississippi

2025-06-18

| University Press of Mississippi eBooks

North Carolina

2025-06-18

| University Press of Mississippi eBooks

Maryland, Virginia, West Virginia

2025-06-18

| University Press of Mississippi eBooks

Tennessee

2025-06-18

| University Press of Mississippi eBooks

Missouri

2025-06-18

| University Press of Mississippi eBooks

Microalgas asociadas a bríofitos en bosques de laurisilva: Frullania como hábitat.

2025-06-16

Paula Aguiar Gil , Nereida M. Rancel-Rodríguez , Cristina González-Montelongo +1 more | Vieraea Folia scientiarum biologicarum canariensium

The study of microalgae (green algae and cyanobacteria) associated with foliose liverworts of the genus Frullania growing epiphytically on laurel forest trees in the Rural Park of Anaga (Tenerife) is … The study of microalgae (green algae and cyanobacteria) associated with foliose liverworts of the genus Frullania growing epiphytically on laurel forest trees in the Rural Park of Anaga (Tenerife) is approached. The enrichment of gametophyte fragments has been allowed to detect the presence of microalgae belonging to three genera of green algae (Chlorophyta) and seven genera of cyanobacteria.

Chemical Analysis and Antimicrobial Potential Assessment of Wild Laurel from the National Park Skadar Lake, Montenegro

2025-06-16

Dragica Bojović , Miomir Šoškić , Ana Žugić +3 more | Applied Sciences

In light of the increasing demand for laurel, driven by renewed interest in natural products and traditional medicinal usage of this plant, our study aimed to investigate the in vitro … In light of the increasing demand for laurel, driven by renewed interest in natural products and traditional medicinal usage of this plant, our study aimed to investigate the in vitro antimicrobial activity of essential oils from leaves and fruits of laurel (EOL and EOF, respectively) collected in the National Park Skadar Lake, Montenegro, as it related to their chemical composition, assessing the possibility of their usage in cosmetics and pharmaceuticals. Also, fatty oil from the remaining laurel fruit after EOF isolation was investigated as a possible source of bioactive compounds. The most abundant components in EOL and EOF were 1,8-cineol (35.1% and 33.3%, respectively) and α-terpinyl acetate (10.4% and 7.0%, respectively). Linalool (7.6%) was found in EOL, while α- pinene (5.8%) and β-elemene (5.7%) were present in significant amounts in EOF. Antibacterial and antifungal properties of EOL and EOF showed strong antibacterial activity against Staphylococcus aureus, Enterococcus faecalis, and Bacillus subtilis, and potent antifungal effects against Candida albicans, opening the door for their application as antimicrobial agents. Chemical analysis of fatty oil unexpectedly revealed prominent content of sesquiterpene lactone dehydrocostunolide and phenylpropanoid derivative (E)-2-hexyl-cinnamaldehyde (21% and 5%, respectively), suggesting further investigations of this waste material as the source of valuable compounds with proven health benefits.

The Dose Makes the Poison: Cultivating Knowledge of Toxins and Treatments on a Botanical Voyage

2025-06-16

Jay K Desai , Michael DiGaetano , Colleen Donovan +2 more | Western Journal of Emergency Medicine

Assessing the diversity and genetic differentiation among native populations of Copaifera multijuga Hayne using microsatellite markers

2025-06-15

Rayssa Gomes Vasconcelos , Raquel da Silva Medeiros , Paulo de Tarso Barbosa Sampaio +2 more | Genetic Resources and Crop Evolution

Notes on rare and newly found <i>Carex </i>taxa (Cyperaceae) in Croatia

2025-06-12

Jacob Koopman , Helena Więcław , Janez Mihael Kocjan +1 more | Acta Botanica Croatica

Although the flora of Croatia is rather well known, several new Carex species and hybrids were able to be added during a caricological visit to Croatia and after two more … Although the flora of Croatia is rather well known, several new Carex species and hybrids were able to be added during a caricological visit to Croatia and after two more years of fieldwork (2023–2024). The total number of Carex species is now 91; besides, there are eleven Carex hybrids known. During our herbarium research and revision in several European herbaria, and recent fieldwork, five new Carex taxa for Croatia were found: C. distachya subsp. phyllostachioidea , C. depressa subsp. transsilvanica , C. nigra subsp. juncea , C. pairae , and C. secalina , while C. aterrima subsp. aterrima was overlooked on the previous Croatian national list. In addition, eleven hybrids were found that were new for Croatia: C. × alberti , C. × alsatica , C. × auroniensis , C. × leutzii , C. × oberrodensis , C. × oenensis , C. × prolixa , C. × pseudoaxillaris , C. × subviridula , C. × villacensis , and C. × xanthocarpa . Moreover, several rare Carex species were confirmed at known locations and new localities were detected for multiple species. The following species were involved: C. atrata , C. buekii , C. capillaris , C. cespitosa , C. fritschii , C. illegitima , C. lasiocarpa , C. pulicaris , C. punctata , C. randalpina , C. rupestris , and C. vulpinoidea . Carex limosa has to be considered as extinct from Croatia. Search for the species C. arenaria , C. diandra , C. frigida , C. melanostachya , C. pauciflora , C. stenophylla , and C. supina , has revealed only very old herbarium specimens, but there has been no recent confirmation in the field. For C. dioica there was no material available, nor could it be confirmed in the field. Two hybrid names, C. × rossiana and C. × villacensis , are lectotypified here.

Intraspecific differences in leaf decomposition and associated traits in closely related Carex species: a microcosm experiment

2025-06-12

Szilvia Márta Neumann , Jules Segrestin , Marie Konečná +7 more | Oecologia

Habitat fragmentation and low patch connectivity threaten the genus Abies Mill. (Pinaceae) in southern North America

2025-06-12

Jesús Eduardo Sáenz-Ceja , Manuel E. Mendoza | Regional Environmental Change

On the Precipice of Extinction: Genetic Data in the Conservation Management of In Situ and Ex Situ Collections of a Critically Endangered Muehlenbeckia tuggeranong (Tuggeranong Lignum)

2025-06-12

Isobel Walcott , Angela Lanspeary , Foyez Shams +3 more | Plants

Muehlenbeckia tuggeranong is an endangered subshrub with an estimated seven individuals remaining in its native habitat, and twelve held in an ex situ living collection in the Australian National Botanic … Muehlenbeckia tuggeranong is an endangered subshrub with an estimated seven individuals remaining in its native habitat, and twelve held in an ex situ living collection in the Australian National Botanic Gardens, Canberra. We conducted a genetic analysis on all known individuals of the species both in situ and ex situ to inform the conservation management of one of the rarest plants in Australia, certainly the rarest in the Australian Capital Territory. We found recent seedlings did not result from hybridisation with M. axillaris but resulted from sexual reproduction within the ex situ collection, leading to greater genetic diversity ex situ than in situ. However, low genetic diversity across the species indicates a high risk of extinction. Through simulations we identified the optimal breeding pairs to minimise further genetic diversity loss and increase the number of available genotypes for future reintroduction. Our work highlights the need to incorporate genetically informed breeding programs into living collections management of endangered plant species, particular those with unique life history traits.

On the ecological value of the pseudopetiole in Cyperaceae and its usefulness in Liliopsida

2025-06-02

Lucas Alves-dos-Santos , Ana Paula do Nascimento Prata , Delmira da Costa Silva +1 more | Revista Brasileira de Botânica

Development and anatomical evidence of floral morphological variation in Cyperoideae (Cyperaceae): case studies on the most species-rich genera

2025-06-01

Mariana Maciel Monteiro , Aline Oriani , Louis P. Ronse De Craene +1 more | Flora

Integrating morphometric and molecular data to reassess the taxonomy of Cyperus L. in Egypt: A revised classification

2025-06-01

Faten Youssef Ellmouni , Mohamed Abdelghani , Ihsan El-Habashi +1 more | Taeckholmia/Taeckholmia (Online)

Physical field excitation to modify Cyperus esculentus starch and its complex with EGCG: Multiscale structural changes and digestive behavior

2025-06-01

Mengqing Li , Guidan Wang , Lijun Sun +1 more | Carbohydrate Polymers

Novel α-glucosidase inhibitory peptide derived from Cyperus esculentus meal protein hydrolysates: screening, inhibition mechanism and stability

2025-06-01

Miao-Miao Bian , Yaxuan Yang , Yijie Liu +2 more | Food and Bioproducts Processing

Population Persistence and Soil Microbial Communities of a Serpentine Endemic Plant Outside Its Historic Elevation Range

2025-06-01

Courtney G. Collins , Devin Dinwiddie , Nuttapon Pombubpa +2 more | Ecology and Evolution

Here we report on a long-term transplant study of a serpentine endemic plant where individuals were transplanted into cooler macro- and microclimatic refugia (i.e., higher elevations and north-facing aspects) in … Here we report on a long-term transplant study of a serpentine endemic plant where individuals were transplanted into cooler macro- and microclimatic refugia (i.e., higher elevations and north-facing aspects) in locations outside of its current range. We describe: (1) how transplanted populations persisted outside of their current range in micro- (cooler aspects) or macro- (higher elevations) climatic refugia; and (2) soil microbial communities that may have helped or hindered population persistence in climatic refugia. Location: Siskiyou Mountains of southwestern Oregon (USA). Taxon: Horkelia sericata (Rosaceae), Angiosperms; Mycota (Fungi); Monera (Bacteria). At each transplant site, we counted surviving individuals (noting reproductive status) and then collected soil from both the rhizosphere of transplanted individuals and from an equal number of areas of nearby bare soil with no plants. Soil bacterial and fungal communities were assessed using next-generation sequencing of 16S and ITS-1 marker genes. Of the 15 initial transplant sites, one (high elevation) site displayed population persistence (i.e., "successful" site), defined as having surviving individuals with reproductive success. Four sites had surviving individuals but no reproductive success (i.e., "unsuccessful" sites); the remaining 10 sites had no surviving individuals and were excluded from microbial analyses. The successful site had distinct soil fungal and bacterial community composition (alpha and beta diversity) and a higher mutualist:pathogen ratio than the unsuccessful sites. Additionally, the mutualist:pathogen ratio did not differ between Horkelia's rhizosphere and bare ground at the successful site, suggesting that the persistence of this population was potentially enhanced by soil mutualists that were already present at that site. Taken together, these results highlight that the success of species range shifts into climatic refugia may be influenced by the presence of suitable soil microbial communities, with a potentially outsized role of mycorrhizal mutualists, emphasizing the need to consider soil microbial communities in future range predictions of highly specialized plants such as serpentine endemics.

Genomic insights into wheatgrass: unravelling genetic diversity, population structure, and evolutionary dynamics in Pseudoroegneria species

2025-06-01

Ying Ji , Nadeem Khan , Raju Chaudhary +6 more | Molecular Phylogenetics and Evolution

Pseudoroegneria species are outcrossing perennial grasses with significant ecological and agricultural value due to its resilience in challenging environmental conditions in the temperate regions. Understanding the extent and pattern of … Pseudoroegneria species are outcrossing perennial grasses with significant ecological and agricultural value due to its resilience in challenging environmental conditions in the temperate regions. Understanding the extent and pattern of genetic diversity and population structure is essential for the breeding improvement and conservation of these species. In the current research, we analyzed genomic variations of 145 genotypes representing seven species (P. spicata, P. tauri, P. geniculata, P. libanotica, P. strigosa, P. stipifolia, and P. cognata) from major global lineages, using genotyping-by-sequencing. Different metrics including nucleotide diversity, observed heterozygosity, and Tajima's D were used to evaluate genetic diversity among populations revealing significant variation among species, with P. stipifolia exhibiting the highest diversity and P. spicata the lowest. Population structure analyses, including principal component analysis, admixture inference, and phylogenetic reconstruction, identified six distinct genetic clusters, with P. spicata (a North American species) clearly separated from the other six species underscoring its unique genetic identity. In contrast, the Eurasian species exhibit mixed ancestry, indicating intricate genetic relationships and widespread exchange of genetic material. Furthermore, no single species tree fully captures the relationships among them, implying interactions such as hybridization or gene flows between closely related species. To investigate the evolutionary history of Eurasian Pseudoroegneria species, we reconstructed the species tree topology based on the SNV (single nucleotide variants) matrix, and f-branch statistics confirmed close relationships among P. spicata, P. libanotica, and P. tauri, with evidence of unidirectional gene flow between P. stipifolia, P. geniculata, and P. strigosa. These findings highlight the importance of high genetic variation in the P. stipifolia population, suggesting its potential to be a reservoir of valuable alleles for resilient genotypes.

BROOKLYN BOTANIC GARDEN FOUNTAINS

2025-05-31

| Fordham University Press eBooks