Selaginella arenicola subsp. arenicola Underw.
Family: Selaginellaceae
sand spikemoss
Selaginella arenicola subsp. arenicola image
Leaves (aerial stems) usually tightly appressed; base conspicuously pubescent. Strobili sometimes with apical vegetative growth, distinctly larger in diameter than subtending stem. Sporophylls abruptly tapering toward apex; apex often recurved. Mostly on dry, exposed sand dunes, white sand, or sandy soil; 0 m; Fla., Ga. Selaginella arenicola subsp. arenicola usually has more slender (1 mm diam.) stems than subsp. riddelli (stems more than 1 mm diam.). In Georgia, many forms intermediate between the two subspecies have been reported.

The National Science Foundation
This project made possible by National Science Foundation Award 1410069