ANNOTATED CHECKLIST OF VASCULAR PLANTS IN THE VICINITY OF CEDAR CREEK AND BREWSTER LAKE, PIERCE CEDAR CREEK INSTITUTE, BARRY COUNTY, MICHIGAN (original) (raw)
Studies in the vascular flora of the southeastern United States: V
2019
As part of ongoing efforts to understand and document the flora of the southeastern United States, we propose a number of taxonomic changes. In Trichostema, we name a new species, narrowly endemic to maritime grasslands in the Carolinas and warranting formal conservation status and action. In Dichanthelium (Poaceae), we continue the reassessment of taxa formerly recognized in Panicum and provide new combinations along with a new key to taxa in the Dichanthelium scabriusculum complex. In Paspalum (Poaceae), we address the controversial taxonomy of P. arundinaceum and P. pleostachyum and treat the two as conspecific, with P. arundinaceum the correct name. In Portulaca (Portulacaceae), we report the discovery of the Bahamian P. minuta as a native component of the North American flora, occurring in southern Florida. resumen Como parte de los esfuerzos en marcha para entender y documentar la flora del sureste de Estados Unidos, proponemos un número de cambios taxonómicos. En Trichostema, nombramos una especie nueva, endemismo restringido a las praderas marinas en las Carolinas y que justifica un estatus formal de conservación y acción. En Dichanthelium (Poaceae), continuamos la reconsideración de taxa reconocidos previamente en Panicum y hacemos combinaciones junto con una nueva clave para los taxa en el complejo Dichanthelium scabriusculum. En Paspalum (Poaceae), abordamos la taxonomía controvertida de P. arundinaceum y P. pleostachyum los tratamos como conspecíficos, con P. arundinaceum su nombre correcto. In Portulaca (Portulacaceae), reportamos el descubrimiento de P. minuta de las Bahamas como componente nativo de la flora de Norte América, que está en el sur de Florida. introduction As part of ongoing work on the Flora of the Southern and Mid-Atlantic States (Weakley 2015; Weakley in prep.), as well as for general floristic, conservation, and scientific work in eastern North America, taxonomic and nomenclatural changes and significant distribution records need to be documented. In some cases, new combinations are needed to accurately reflect current taxonomic understanding. Some of these reflect rank This document is intended for digital-device reading only. Inquiries regarding distributable and open access versions may be directed to
Studies in the vascular flora of the southeastern United States. IX
Journal of the Botanical Research Institute of Texas, 2023
As part of ongoing work on the Flora of the Southeastern United States (Weakley & Southeastern Flora Team 2022a) and related projects, as well as for general floristic, conservation, and scientific work in eastern North America, it is essential to document taxonomic and nomenclatural changes and significant distribution records. Here we describe three new species (in Rhynchospora, Sabulina, and Solidago), describe a new section (in Trichostema), make new combinations to treat taxa at appropriate ranks in appropriate genera and with appropriate nomenclatural application based on types (in Lycopodioides, Moeroris, Morella, Nellica, Tamala, and Trichostema), and propose the lumping of two species, resulting in a change in name and nativity status (in Sisyrinchium). These new combinations (rank changes, or generic transfers to apply newly accepted generic concepts to taxa that do not have corresponding available names at the appropriate rank) are needed to accurately reflect current taxonomic understanding of the regional flora. In the course of doing so, we discuss and address various nomenclatural issues, including typifications, and clarify characters and identification of difficult groups (providing new keys) in the regional flora. We also report significant new distribution and naturalization records in many genera, in New Jersey (taxa in the genera
Studies in the vascular flora of the southeastern United States. VI
Journal of the Botanical Research Institute of Texas, 2020
As part of ongoing efforts to understand, document, and conserve the flora of southeastern North America, we propose a number of taxonomic changes, nomenclatural changes, interpretations of nativity, and distributional accounts. Regarding the Asaroideae (Aristolochiaceae), we support continued recognition of Hexastylis (and other segregates of a very broad Asarum s.l.) at generic rank and make the necessary combinations to continue the use of Hexastylis in southeastern North America floras. In Conoclinium (Asteraceae), we present morphological and distributional evidence corroborating the recent suggestion (based on molecular evidence) that Chapman’s 1878 C. dichotomum is distinct, warrants recognition, and is present as a second Conoclinium in the southeastern North American flora. An analysis of historical accounts of Gaillardia pulchella (Asteraceae) strongly suggests that its modern occurrence east of Texas is adventive, rather than native. Two rare southeastern United States sk...
Rhodora, 2009
Floodplain, 6) Riparian Creekbank, Gravelbars, and Mudflats, and 7) Culturally Derived Ruderal Roadside. The vascular flora consisted of 384 specific and infraspecific taxa in 229 genera from 83 families. Eighty (20.8%) taxa were exotics. Plant division representation was one Equisetophyta, three Lycopodiophyta, 15 Polypodiophyta, two Pinophyta, and 363 Magnoliophyta (97 Liliopsida, 266 Magnoliopsida). The largest five families were the Asteraceae (40), Poaceae (37), Cyperaceae (32), Rosaceae (23), and Fabaceae (12). Twenty-one taxa (5.5%) were new records for Crawford County.
The Vascular Flora and Vegetational Communities of Cabin Creek Raised Bog, Randolph County, Indiana
Castanea, 2013
Owned by the Red-tail Land Conservancy, Dutro Woods Nature Preserve (DWNP) is a 6.8 ha (16.7 acres) site located on State Road 32 in west-central Muncie, Indiana, Delaware County. An inventory of the vascular flora indicates that the urban site harbors considerable plant diversity with 240 taxa representing 164 genera and 63 families. Of the 240 taxa, 136 (57%) are native and 104 (43%) are non-native (exotic). The percent of non-native taxa is high when compared to other studies in east-central Indiana (typically between 18-25%). Thirty species represent Delaware County Records. In addition, seven species documented at DWNP are reported for the first time in Delaware County; however, they are not considered county records since they have not naturalized at the site. Tilia cordata represents a state record. No species occur on the IDNR list of endangered, threatened, or rare plants. The 12 families containing approximately 62% of the documented species are Asteraceae (31 spp.), Poaceae (27 spp.), Cyperaceae (16 spp.), Rosaceae (16 spp.), Fagaceae (eight spp.), Liliaceae (eight spp.), Polygonaceae (eight spp.), Brassicaceae (seven spp.), Fabaceae (seven spp.), Lamiaceae (seven spp.), Caprifoliaceae (five spp.), and Caryophyllaceae (five spp.). No species of the Ranunculaceae were observed. A physiognomic analysis reveals that the native species consist of 42 woody species, 65 herbaceous vines or forbs, 27 graminoids, and two ferns. Of the 104 exotics, 26 are woody, 61 are herbaceous vines or forbs, and 17 are grasses. The flora at DWNP is predominately low fidelity (low C-value), i.e., 87.9% (211 spp.) of the taxa have C-values # 3, and only 4.6% (11 taxa) have C-values $ 5. For native species only, the FQI 5 25.0 and the mean Coefficient of Conservatism (mean C) is 2.2. For all species FQI 5 18.6 and the mean C 5 1.2. These numbers suggest that DWNP lacks or has not returned to remnant natural quality. The high percentage of non-native species is discussed from the standpoint of secondary succession at the site since the early 1980s.
Journal of the Botanical Research Institute of Texas, 2018
As part of ongoing efforts to understand and document the flora of the southeastern United States, we propose a number of taxonomic changes and report a distributional record. In Rhynchospora (Cyperaceae), we elevate the well-marked R. glomerata var. angusta to species rank. In Dryopteris (Dryopteridaceae), we report a state distributional record for Mississippi for D. celsa, filling a range gap. In Oenothera (Onagraceae), we continue the reassessment of the Oenothera fruticosa complex and elevate O. fruticosa var. unguiculata to species rank. In Eragrostis (Poaceae), we address typification issues. In the Trilliaceae, Trillium undulatum is transferred to Trillidium, providing a better correlation of taxonomy with our current phylogenetic understanding of the family.
The vascular flora and vegetational communities of Mississinewa Woods in Randolph County, Indiana
Proceedings of the Indiana Academy of Science, 2016
Mississinewa Woods, owned by the Red-tail Conservancy, is located in the northwest corner of Randolph County, Indiana. The preserve is part of a long, thin riparian corridor along the Mississinewa River in the Midwest Corn Belt region. Except for the riparian corridor and a few small nearby wooded lots, Mississinewa Woods is surrounded by agricultural fields for miles in every direction. The inventory of the vascular flora indicates that the 15.4 ha site harbors significant regional plant diversity with 311 species and varieties representing 215 genera and 77 families. The 12 families containing , 59% of the documented species were Apiaceae, Asteraceae, Brassicaceae, Cyperaceae, Fabaceae, Lamiaceae, Liliaceae, Poaceae, Polygonaceae, Ranunculaceae, Rosaceae, and Scrophulariaceae. Of the documented flora, 233 (74.9%) were native, 78 (25.1%) were adventives, and 128 represented Randolph County Records. A detailed physiognomic analysis revealed that of the 233 native species, 49 species were woody, 146 were herbaceous vines or forbs, 37 were graminoids, and one is a fern or fern allies. Of the 78 adventives, seven are woody, 53 were herbaceous vines or forbs, and 18 were grasses. The Floristic Quality Index (FQI) for native species was 46.2 and a mean Coefficient of Conservatism (mean C) was 3.0. The FQI indicates that the site is of nature preserve quality but the low mean C indicates that it has few higher quality species. Although none of the plants documented at the site have state or federal status, there were two species which are uncommon to east-central Indiana, i.e., Hibiscus laevis and Schoenoplectus pungens var. pungens.
Natural Communities of Michigan: Classification and Description
2007
We express our sincere gratitude to Michael Penskar, MNFI Lead Botanist, for supporting this effort over many years by providing mentoring, encouragement, and valuable input. The lists of rare plants and rare animals contained in the community descriptions were derived from several sources over many years, but mostly from the collected knowledge of our much appreciated current and former MNFI colleagues and collaborators, some of whom include