Monographs Details: Scytonema ocellatum var. majus N.L.Gardner
Authority: Gardner, Nathaniel L. 1927. New Myxophyceae from Porto Rico. Mem. New York Bot. Gard. 7: 1-144. pl. 1-23.
Description:Species Description - Filaments 18-22 µ diam., about 1 mm. long; cells cylindrical, purplish gray; sheath thin, firm, homogeneous, smooth, brown; branching both single and geminate.
Distribution and Ecology - Growing on limestone at Hacienda, Laguna Tortuguero, no. 867, type; on rocks by a stream near Maricao, no. 1157.