Vascular flora of Myakka River State Park, Sarasota and Manatee Counties, Florida (original) (raw)
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Inventory of Vegetation Studies in Illinois Based on the Public Land Survey Records
Transactions of the Illinois State Academy of Science. Illinois State Academy of Science
Although the main purpose of the Public Land Surveys (PLS) surveys of the early 1800’s (in Illinois) was to establish permanent section corners for future settlement, the botanical portion of the work has been widely used over the past 50 years by ecologists to develop our understanding of the presettlement vegetation as it existed at the time of the survey. In Illinois investigators have published analyses of this dataset for entire counties in 29 of the 102 counties in the state. In addition parts of 19 other counties have been published. We conducted an inventory of publications to determine the regions of the state that have already been mapped. One goal was to discover the counties for which digital information was available.
Analysis of the Completeness of Vascular Plant Records in Florida
Journal of the Botanical Research Institute of Texas
Using the species-area relationship formula S=CAz, we predicted the species richness of vascular plants for each county in Florida. The predicted species richness value of each county was then compared to the documented species richness value for each county gathered from herbaria records. Results indicate that 67% of the Florida counties have documented species richness values that matched or exceeded predicted values. The remaining counties (33% of the Florida) lack adequate documentation of species richness and thereby constitute data-gaps in the state’s floristic inventories.
2006
Little Calumet Headwaters Nature Preserve is a 108-acre tract of woodland and wetland areas that comprise the headwaters of the Little Calumet River in northwestern Indiana. The preserve, consisting of upland hardwood forests, groundwater seeps, and wetland complex, is an area of high diversity due to its topographical variation. A floristic inventory, plot sampling, and seed bank analysis were used to determine the structure and composition of the plant communities. The flora consists of 298 species (27 exotic) representing 188 genera and 84 families. Dominant vegetation of the forest includes Liriodendron tulipifera, Prunus serotina, Packera aurea and Podophyllum peltatum. Each groundwater seep contains similar plant communities with variant species that depend on water flow and topography. They include species such as Symplocarpus foetidus, Impatiens capensis, and Caltha palustris and lack an extensive woody overstory except for occasional Salix spp. or Cornus spp. The wetland complex contains three distinct areas: an open fen dominated by Leersia oryzoides and Cornus spp.; a marsh dominated by Typha latifolia and Carex lasiocarpa; and a shrub-carr portion dominated by Symplocarpus foetidus, Cornus alternifolia, and Salix nigra. A wetland seed bank study resulted in a total of 46 species representing 33 genera and 22 families. A similarity of 71.7% was determined between the seed bank samples and the above-ground vegetation. The entire preserve has a high floristic quality index (FQI) of 70.1 and average mean coefficient of conservatism of 4.1. The high FQI value is influenced by property size and the number of communities in the preserve.
Proceedings of the Indiana Academy of Science, 2002
This paper on Wilbur Wright Fish and Wildlife Area (WWFWA), Henry County, Indiana, documents 635 vascular plant species and varieties within the 416.6 ha (1029 acre) site. The 635 species and varieties represent 343 genera and 109 families with the Asteraceae (76 species), Cyperaceae (55 species including 44 Carex spp.) and Poaceae (53 species) having the highest number of species. Unusual sedges include Carex atherodes and Carex gravida. A total of 274 species is recorded for the first time from Henry County. Of the 61 1 angiosperms listed, 163, or approximately 27%, are non-native or exotic species. The vascular flora of WWFWA includes one rare species (Rudbeckia fulgida var. fulgida [in prairie plantings]), two endangered species (Epilobium ciliatum and Zannichellia palustris), two threatened species (Thalictrum pubescens and Veronica anagallis-aquatica) and four species on the watch list (Filipendula rubra, Panax quinque'folium, Spiranthes oralis and Synandra hispidula) compiled by the Indiana Natural Heritage Program. The physical and biotic history of the site is reviewed, and the major community types (upland forest, floodplain forest, wetlands, aquatic and successional) are described.
Vascular Plant Communities of the Green River Lowlands in Northwestern Illinois
Illinois Natural History Survey Bulletin
A few high-quality prairies still exist in the sand deposits of the Green River Lowlands. The most extensive remnants are in the Green River State Wildlife Area, Lee County, Illinois. Three upland prairie communities were surveyed; a dry sand prairie dominated by Schizachyrium scoparium, Ambrosia psilostachya, and Amorpha canescens; a dry-mesic sand prairie dominated by Sorghastrum nutans, Schizachyrium scoparium, Antennaria plantaginifolia, and Liatris aspera; and a mesic sand prairie where Sorghastrum nutans and Andropogon gerardii were the dominant grasses, and Parthenium integrifolium, Fragaria virginiana, Liatris pycnostachya, and Euthamia gymnospermoides the common forbs. The lowlands, which included approximately 325 ha, were dominated by the exotic Phalaris arundinacea, but high-quality wet sand prairie, sedge meadow, and marsh communities existed. The wet sand prairies were dominated by Spartina pectinata, Helianthus grosseserratus, and Solidago canadensis; the sedge meadow...