Rhodora最新文献

{"title":"Junior Faculty Award on the Flora of New England","authors":"K. Coe","doi":"10.3119/0035-4902-123.995.366","DOIUrl":"https://doi.org/10.3119/0035-4902-123.995.366","url":null,"abstract":"","PeriodicalId":54454,"journal":{"name":"Rhodora","volume":"123 1","pages":"366 - 366"},"PeriodicalIF":0.2,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69625477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chromosome number determinations in Solidago brendae, S. canadensis, S. fallax, and S. lepida (Asteraceae: Astereae)","authors":"J. Morton, Joan Venn, J. C. Semple","doi":"10.3119/22-02","DOIUrl":"https://doi.org/10.3119/22-02","url":null,"abstract":"ABSTRACT Chromosome numbers are reported for 177 individuals of Solidago brendae, S. canadensis, S. fallax, and S. lepida. Chromosome numbers of 2n = 36 and 2n = 54 for S. fallax var. molina are first reports for this taxon.","PeriodicalId":54454,"journal":{"name":"Rhodora","volume":"123 1","pages":"345 - 352"},"PeriodicalIF":0.2,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69626508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Merritt Lyndon Fernald Award","authors":"","doi":"10.3119/0035-4902-123.995.362","DOIUrl":"https://doi.org/10.3119/0035-4902-123.995.362","url":null,"abstract":"","PeriodicalId":54454,"journal":{"name":"Rhodora","volume":"123 1","pages":"362 - 363"},"PeriodicalIF":0.2,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46753852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Taxonomic studies in the Miconieae (Melastomataceae). XVI. Revision of Miconia sect. Echinatae","authors":"W. Judd, Eldis R. Bécquer, L. Majure","doi":"10.3119/20‒35","DOIUrl":"https://doi.org/10.3119/20‒35","url":null,"abstract":"ABSTRACT The recently recognized Miconia sect. Echinatae is characterized and revised. It includes 23 species previously recognized within Calycogonium, Clidemia, Leandra, and especially Ossaea. For each species, a detailed description, nomenclatural information, specimen citations, and eco-geographical characterization are presented, along with an identification key for the section. Section Echinatae likely represents a monophyletic group, the Paralima clade, within the Caribbean clade of Miconia s.l. (Melastomataceae: Miconieae) and is restricted to Cuba, Hispaniola, and Jamaica. It reaches its greatest diversity on Cuba, occurring in the western, central, and eastern regions of this island. The section can be diagnosed by a combination of characters—especially the mixture of multicellular, elongate, eglandular, bulla-based hairs and minute, globular-stellate hairs on the outer surface of the hypanthium, along with the 4-merous flowers with clavate-dendritic hairs on the adaxial surface of the calyx tube (and lobes) and strongly acute to acuminate petals. Most species also have bulla-based hairs and globular-stellate hairs on their abaxial leaf surfaces. In addition, these species lack the synapomorphies of the related sections Lima, Calycopteris, Calycodomatia, and Krugiophytum. Finally, Miconia garciabeltranii, M. joseluisii, and M. pseudopauciflora are newly described, and the new name M. cubapinetorum is provided for the species previously known as Ossaea pinetorum.","PeriodicalId":54454,"journal":{"name":"Rhodora","volume":"123 1","pages":"237 - 334"},"PeriodicalIF":0.2,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69626497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Apparent Hybridization of Nonnative Rhamnus Populations in Central New York and Connecticut, U.S.A.","authors":"Selma Rosenthal","doi":"10.3119/20-23","DOIUrl":"https://doi.org/10.3119/20-23","url":null,"abstract":"ABSTRACT The Eurasian Rhamnus cathartica is widespread, common, and naturalized in parts of the northeastern United States. Other nonnative buckthorn species are also present but underreported because intraspecific leaf polymorphisms, hybridization, and imprecise literature descriptions confuse identifications. A study of Rhamnus populations in Tompkins and Onondaga counties in New York and Hartford County in Connecticut provided an opportunity to revisit the literature and to propose identification aids based on infrequently reported fruit stone number and mature fruit pulp color. These characters facilitate inferences of ancestry of apparent hybrids involving R. cathartica, R. davurica, and R. utilis.","PeriodicalId":54454,"journal":{"name":"Rhodora","volume":"123 1","pages":"105 - 132"},"PeriodicalIF":0.2,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43178087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hottonia palustris (Primulaceae): A Newly Documented Nonnative Aquatic Plant Species in New Hampshire, U.S.A.","authors":"W. Nichols, Amy P. Smagula, A. Haines, Douglas McGrady","doi":"10.3119/21-13","DOIUrl":"https://doi.org/10.3119/21-13","url":null,"abstract":"William F. Nichols1*, amy P. smagula2, arthur haiNes3, Douglas mcgraDy4 1New Hampshire Natural Heritage Bureau, Division of Forests and Lands Department of Natural and Cultural Resources, 172 Pembroke Rd., Concord, NH 03301 *William.Nichols@dncr.nh.gov 2Watershed Management Bureau, Department of Environmental Services 29 Hazen Dr., Concord, NH 03302-0095 3Native Plant Trust, 180 Hemenway Rd., Framingham, MA 01701 4940 Quaker Ln., Apartment 1419, Warwick, RI 02893","PeriodicalId":54454,"journal":{"name":"Rhodora","volume":"123 1","pages":"221 - 228"},"PeriodicalIF":0.2,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42641943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Aquatic and Wetland Flora of Fowler Lake, Buffalo National River, Arkansas, U.S.A.","authors":"C. Cheri, L. Kissoon, D. Bowles","doi":"10.3119/21-09","DOIUrl":"https://doi.org/10.3119/21-09","url":null,"abstract":"ABSTRACT Fowler Lake is a small reservoir atop Cave Mountain at the Buffalo National River in Arkansas, U.S.A. We report on the floristic community at this reservoir in addition to describing large floating vegetation mats that occur in this system and the mechanisms that allow their formation. In 2019, floristic surveys assessed 30 species of hydrophytes and helophytes representing 16 families and 26 genera. In addition to the speciose families Asteraceae, Cyperaceae, and Poaceae, the families Araceae and Polygonaceae were represented by three or more species. Six species observed at Fowler Lake represent new county records. Floristic surveys provide valuable information to assess ecological impacts and management decisions in areas like the Ozark Plateau, where relatively little work has been done on regional aquatic macrophytes. This study represents the first comprehensive floristic survey of Fowler Lake at the Buffalo National River and serves as a reference for continued study of that system and aquatic plants throughout the Ozark Plateau.","PeriodicalId":54454,"journal":{"name":"Rhodora","volume":"123 1","pages":"133 - 148"},"PeriodicalIF":0.2,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43320799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"First Report of Japanese Andromeda (Pieris japonica, Ericaceae) Escaped from Cultivation in Massachusetts, U.S.A.","authors":"George M. LoCascio","doi":"10.3119/21-11","DOIUrl":"https://doi.org/10.3119/21-11","url":null,"abstract":"","PeriodicalId":54454,"journal":{"name":"Rhodora","volume":"123 1","pages":"229 - 230"},"PeriodicalIF":0.2,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45921674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Two Centuries of Change in the Native Flora of Franklin County, Massachusetts, U.S.A.","authors":"R. Bertin, K. Searcy, G. Motzkin, M. Hickler, Peter P. Grima","doi":"10.3119/21-18","DOIUrl":"https://doi.org/10.3119/21-18","url":null,"abstract":"ABSTRACT We examined changes in the native vascular flora of Franklin County, Massachusetts, a largely rural county with a long history of botanical investigation. The historical flora was documented using herbarium specimens and literature records, and the current flora was assessed in 10 years of field work starting in 2010. The county contains 26 towns, and apparent changes were based on town-level presence/absence. In total, 1205 species were recorded. Apparent losses from the historical flora totaled 5.6% of species, and apparent gains totaled 4.2%. Several families exhibited greater declines than the flora as a whole, including the Orchidaceae, Ophioglossaceae, Ranunculaceae, and Violaceae. Species dependent on fungi during at least part of their life cycle declined relative to other species, but were concentrated in a small group of families, including the Orchidaceae and Ophioglossaceae. Species with fleshy fruits increased relative to those with ant-dispersed seeds. Annuals increased relative to biennials and perennials, probably due to the increasing extent of ruderal habitats. Graminoids showed greater apparent increases than forbs, which may reflect undercollecting of the former taxa during the historical period. Species changes were related to habitat, with marked increases in plants of ruderal habitats, but other apparent changes may reflect sampling biases. Northern taxa appear to be declining relative to other species, particularly in towns at lower elevations. This study is one of several that have examined floristic changes in the northeastern United States and is part of a nascent literature suggesting that climate changes have altered the southern New England flora in the past century. Additional documentation of regional floras is needed to facilitate assessments of future floristic changes.","PeriodicalId":54454,"journal":{"name":"Rhodora","volume":"123 1","pages":"149 - 220"},"PeriodicalIF":0.2,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46491305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"NEBC Meeting News","authors":"Karen Hirschberg","doi":"10.3119/0035-4902-123.994.233","DOIUrl":"https://doi.org/10.3119/0035-4902-123.994.233","url":null,"abstract":"New England Botanical Club President Jesse Bellemare welcomed participants to the 1151st meeting on Saturday, April 3, 2021. He introduced the 2021 NEBC Distinguished Speaker, Dr. Robert I. Bertin, Professor of Biology, Emeritus, College of the Holy Cross, Worcester, Massachusetts. Dr. Bertin is currently studying the effects of recent climate change on flowering phenology and changes in the floristic composition of New England over time. He coauthored the Flora of Worcester County and more recently, the Flora of Franklin County, and has made major contributions to the understanding of floristic change in our region. Dr. Bertin’s presentation was titled “Regional Floras and the Assessment of Regional Change.” Published floras and herbarium collections are vital sources of historic data on plant distributions. Most herbarium specimens held at New England institutions can be viewed in digital form on the Consortium of Northeastern Herbaria website. The NEBC Herbarium has the most extensive collection of New England specimens, going back 200 years. MassWildlife’s Natural Heritage and Endangered Species Program (NHESP) is another valuable source, providing town occurrences of rare (state-listed) species. Dr. Bertin worked on the Franklin County Flora Project with Dr. Karen Searcy, Matt Hickler, Glenn Motzkin, and Pete Grima, with contributions from other botanists. They logged 46,000 field records, collected 4300 specimens, and examined 16,000 herbarium specimens and thousands of literature records. The resulting Flora of Franklin County includes 1205 native species and 635 nonnative species, with 67 historic species not found and 50 species documented that had not been reported historically. The highest diversity was found in the towns of the Connecticut River Valley. Dr. Bertin briefly described three collaborative floristic projects in which he is currently involved: 1) analysis of changes in the flora of Franklin County, 2) analysis of changes in rare species in Massachusetts that have northern affinities, and 3) changes in abundance of orchids. Dr. Bertin and collaborators examined changes in Franklin County species using an index based on the number of towns in which a species was recorded recently (since 2010) and historically (pre-2010). The median change index was modestly positive (0.18) for native species, presumably reflecting the greater intensity of recent than historical sampling, but much higher (0.52) for nonnative species, reflecting their increasing frequency. This increase in nonnative taxa could cause problems for insect herbivores— such as moths and butterflies—since other studies have shown lower diversity and abundance of these insects on nonnative plants. Dr. Bertin and collaborators looked at changes in native species in different habitat types. A large apparent increase in species of aquatic habitats was probably an artifact of the more thorough sampling of these","PeriodicalId":54454,"journal":{"name":"Rhodora","volume":"123 1","pages":"233 - 236"},"PeriodicalIF":0.2,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48381521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}