Monographs Details: Stigonema hormoides var. lineare 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 300-500 µ long, comparatively straight, sparsely branched, with branches as long and of the same dimensions as the main frond, 7-8 µ diam., sheath very thin, smooth, hyaline at first, soon changing to yellowish; cells finely granular.

Distribution and Ecology - Growing on soil at the Experiment Station, Rio Piedras, no. 117a, type.

Discussion:In this form of S. hormoides the sheath is very thin and the cells stand close together. In the young and rapidly growing stage the filaments resemble those of a species of Phormidium.