Scientific name: Isoetes appalachiana D.F. Brunton & D.M. Britton
Synonym : Isoetes engelmannii A. Braun var. georgiana Engelm.
Common name: Appalachian quillwort; Bigspore Engelmann's Quillwort
Family: Isoetaceae; Quillwort
Legal status: Imperiled in Georgia
Habitat: Shallow water in sluggish streams,

Type locality: Horse Leg Creek, a tributary of the Coosa River, Floyd County, Georgia
Herbarium specimens: (US)00067518 Washington, DC

Comments: Alvan W. Chapman (1809-1899), a physician and botanist from Florida collected the first specimen of Appalachian quillwort in Rome, Floyd County, Georgia in August 1872.

Description: Amphibious plant; corm fleshy, roots form lobed base; a few leaves, coarse, 10 - 15 inches long, slender, with 4 peripheral strands, light green; oval sporangia; velum narrow; thick megaspores 0.48 mm - 0.46 mm in diameter; microspores 0.028 mm - 0.031 mm long, smooth

References :
1. Small, John K. " Ferns of the Southeastern States". Lancaster, PA.: The Science Press Printing Co. 1938: 443
2. Boom, Brian M., " Synopsis of Isoetes in the Southeastern United States." Castanea 47 (1982): 41-42
3. U.S. National Herbarium, Department of Botany, National Museum of Natural History ( http://www.nmnh.si.edu/botany/), Smithsonian National Museum of Natural History, 10th Street and Constitution Ave., NW, Washington, D.C.20560
4. USDA, NRCS. 2006. The PLANTS Database, 6 March 2006 (http://plants.usda.gov). National Plant Data Center, Baton Rouge, LA 70874-4490 USA.

Last updated on January 7, 2013.

Botanical explorations in Floyd County, Georgia
List of plants collected by A. W. Chapman in Floyd County, Georgia
Type Specimens From Floyd County