Monographs Details: Lyngbya erecta N.L.Gardner
Authority: Gardner, Nathaniel L. 1927. New Myxophyceae from Porto Rico. Mem. New York Bot. Gard. 7: 1-144. pl. 1-23.
Family:Oscillatoriaceae
Description:Species Description - Filaments relatively straight and more or less parallel, attached at one end, forming a dense velvety stratum, 4-7 mm. long, 3.5-4 µ diam.; trichomes 1.4-1.6 µ diam., not constricted at the dissepiments, not attenuated at the apices; cells mostly quadrate, but varying from slightly shorter to 2 times as long as the diameter, cross-walls moderately conspicuous, apical cell rounded, terminal wall not thickened; sheath subgelatinous, hyaline, homogeneous.

Distribution and Ecology - Growing on stones in a brook in the vicinity of San Lorenzo, no. 501 a, type.

Discussion:PLATE 8, FIGURE 75