STUDIES IN THE VASCULAR FLORA OF THE SOUTHEASTERN UNITED STATES. VII Alan S. Weakley, Derick B. Poindexter, Hannah C. Medford UNC-CH Herbarium (NCU), North Carolina Botanical Garden, University of North Carolina at Chapel Hill Campus Box 3280, Chapel Hill, North Carolina 27599-3280, U.S.A.
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[email protected] Alan R. Franck Institute of Environment, Department of Biological Sciences, Florida International University 11200 SW 8th Street, Miami, Florida 33199, U.S.A.,
[email protected] Keith A. Bradley South Carolina Department of Natural Resources, Heritage Trust Program, 1000 Assembly Street Columbia, South Carolina 29202, U.S.A. and A.C. Moore Herbarium (USCH), University of South Carolina,
[email protected] Jimi Sadle Everglades and Dry Tortugas National Parks, 40001 State Road 9336 Homestead, Florida 33034, U.S.A.
[email protected] John Michael Kelley 8012 Blanchard Furrh Road, Shreveport, Louisiana 71107, U.S.A.
[email protected] ABSTRACT As part of ongoing efforts to understand, document, and conserve the flora of southeastern North America, we propose two new species, the recognition of a usually synonymized variety, the acceptance of two species of Waltheria as being present in peninsular Florida, taxonomic acceptance of a sometimes deprecated species transferred with a new name into a different genus, and we clarify the distribution and ecology of a species. In Carex (Cyperaceae), we re-analyze infrataxa in Carex intumescens and recommend the recognition of two varieties, a taxo- nomic schema first proposed in 1893, but usually not followed in the 128 years since. In Euphorbia (Euphorbiaceae), a careful assessment of south Florida material of Euphorbia subg.