Monographs Details: Stigonema hormoides var. nodulosum 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 8-9 µ diam., short, very crooked and nodular; cells close together, subspherical; tegument thin, firm, homogeneous, dark brown; branches very sparse, short; heterocysts sparse.

Distribution and Ecology - Growing on rocks in a waterfall of a warm stream, Coamo Springs, no. 310, type.