Kris R. DeLaney, Nancy Bissett & Jeffery Weidenhammer

ABSTRACT:  Carphephorus subtropicanus DeLaney, Bissett and Weidenhamer, a formerly unrecognized Florida endemic species, is described from mesic pine flawoods habitat of central and southern Florida. Its general morphology and chemistry are compared with C. odoratissimus (J.F. Gmelin) H. Hebert. A revised dichotomous key for the Carphephorus species of Florida is provided.

Keywords: Carphephorus, Endemic, Endangered, Gas Chromatography, Mass Spectrometry, Scanning Electron Microscopy, Asteraceae, Coumarin, 1,2-Benzopyrone, 2H-1-Benzopyran-2-one, C9H6O2

Kris R. DeLaney & Richard P. Wunderlin

ABSTRACT:  Chrysopsis highlandsensis DeLaney & Wunderlin, an endemic species of xeric upland habitats of the Lake Wales Ridge in central Florida, is described. It is compared to C. floridana Small. A revised dichotomous key for the Chrysopsis species of Florida is provided.

Keywords: Chrysopsis, goldenaster, endemic, endangered, sand pine scrub, scrubby flatwoods, longleaf pine/turkey oak sandhill, Lake Wales Ridge, Asteraceae, Astereae.

Kris R. DeLaney, Richard P. Wunderlin and John C. Semple

ABSTRACT:  Chrysopsis delaneyi Wunderlin & Semple, an endemic species of xeric upland habitats in central and southeastern Florida, is described. A robust and previously unrecognized plant, it is composed of several ecotypic forms. Its morphological variation across peninsula Florida’s ancient ridge systems is discussed. It is compared to C. scabrella Torr. & A. Gray, and a revised dichotomous key for the Chrysopsis species of Florida is provided. A chromosome number of 2n = 5II is reported for the first time.

Keywords: Chrysopsis, goldenaster, endemic, endangered, sand pine scrub, longleaf pine and turkey oak sandhill, xeric upland, Lake Wales Ridge, Atlantic Coastal Ridge, Asteraceae, Astereae.

Richard P. Wunderlin & Bruce F. Hansen

ABSTRACT:  The new combinations Scirpus erectus (Poiret) raynalii (Schuyler) B. F. Hansen & Wunderlin and Phyla fruticosa (Miller) K. Kennedy ex Wunderlin & B. F. Hansen are proposed.

Kris R. DeLaney

ABSTRACT:  Asimina manasota DeLaney, a new species endemic to longleaf pine and turkey oak sandhills associated with the upper Manatee River, upper Myakka River, and Myakka Head regions of Hardee, Manatee, and Sarasota counties, is diagnosed, described, illustrated, and depicted. It is compared to A. angustifolia Raf., and its range, rarity, extinction risks, and conservation concerns are discussed. Five natural hybrids of Asimina are also described, including: A. Xkralii DeLaney, a hybrid of A. incana and A. pygmea, from Marion County; A. Xbethanyensis DeLaney, a hybrid of A. manasota and A. reticulata, from Manatee County; A. Xcolorata DeLaney, a hybrid of A. obovata and A. pygmea, from Polk County; A. Xoboreticulata DeLaney, a hybrid of A. obovata and A. reticulata, from Highlands County; and A. Xpeninsularis DeLaney, a hybrid of A. parviflora and A. reticulata, from Hardee County.

Annonaceae, Asimina, natural hybrid, pawpaw, endemic, endangered, longleaf pine and turkey oak, sandhill, high pine, xeric upland, Myakka River, Manatee River, Hardee County, Manatee County, Sarasota County, Florida, USA.

Kris R. DeLaney

ABSTRACT:  Paronychia discoveryi DeLaney, a rare, perennial herb, endemic to central Florida and eastern north Florida, adapted to low scrub and scrubby flatwoods habitats, is described and depicted. It is compared to P. americana (Nutt.) Fenzl ex Walp., a much more widely distributed annual species. A revised, detailed key to the Florida Paronychia is provided. Light microscopy images of the utricles and flowers are included for each Florida species, and a number of newly observed diagnostic characters are introduced.

Keywords: Caryophyllaceae, Paronychia, Florida Nailwort, endemic, endangered, xeric upland, sand pine scrub, scrubby flatwoods, xeric uplands, Brevard County, Hardee County, Lake County, Orange County, St. Johns County, Volusia County, Florida, U.S.A.

Kris R. DeLaney

ABSTRACT:  Tephrosia mysteriosa DeLaney, a small, prostrate herb adapted to longleaf pine and turkey oak sandhills, and narrowly endemic to the Lake Wales Ridge and Mount Dora Ridge in central Florida, is described, depicted, and discussed. It is compared to T. chrysophylla Pursh, a much more widespread species. Tephrosia Xvarioforma DeLaney, a natural hybrid of T. florida and T. mysteriosa, is also described and depicted. Typical leaf images and a revised key to the all of the Florida species of Tephrosia are also provided.

Keywords: Fabaceae, Millettieae, Tephrosia, Sandhill Tippitoes, endemic, endangered, longleaf pine and turkey oak, sandhill, xeric upland, Lake County, Highlands County, Polk County, Marion County, Lake Wales Ridge, Mount Dora Ridge, Florida, U.S.A.

Kris R. DeLaney

ABSTRACT:  Sida planicaulis Cav. (sect. Distichifolia), an herbaceous perennial plant found mainly along the southern Atlantic coast of Brazil, is reported for the first time in the United States. Its discovery in central Florida live oak hammocks is of concern to ecosystem conservation due to its invasive nature, and because of the extent to which infestations of the plant have already occurred. Its primary habitat and ecological implications are discussed, and a detailed taxonomic description and Florida range map are provided. Its morphology is compared to S. ulmifolia Mill., a ubiquitous ruderal species with which it has consistently been confused.

Malvaceae, Malveae, Sida, Distichifolia, live oak hammocks, fanpetals, Lake Kissimmee, Lake Arbuckle, Kissimmee River, Highlands County, Okeechobee County, Osceola County, Polk County, Florida, U.S.A.

Kris R. DeLaney & Richard E. Day

ABSTRACT:  Previously unknown populations of Warea amplexifolia (Nutt.) Nutt. are discovered in Marion County, Florida, thus significantly increasing the known range for this nearly extinct endemic plant. A revised range map is provided, critical habitat is characterized, and expanded conservation actions are proposed.

Brassicaceae, Warea amplexifolia, wideleaf pinelandcress, clasping warea, endemic, endangered, longleaf pine and turkey oak sandhill, high pine, xeric upland, Lake Wales Ridge, Marion County, Florida, USA.