Monographs Details: Plectonema flexuosum 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 not forming a stratum, more or less scattered among other algae, 5.8-6.5 µ diam.; trichomes not constricted; apices not attenuated; cells quadrate to slightly longer than broad, homogeneous, aeruginous; cross-walls conspicuous; apical cells rounded to blunt-conical; sheath very thin, white, 0.5-0.8 µ diam.; branching single, moderately abundant.

Distribution and Ecology - Filaments not forming a stratum, more or less scattered among other algae, 5.8-6.5 µ diam.; trichomes not constricted; apices not attenuated; cells quadrate to slightly longer than broad, homogeneous, aeruginous; cross-walls conspicuous; apical cells rounded to blunt-conical; sheath very thin, white, 0.5-0.8 µ diam.; branching single, moderately abundant.

Discussion:PLATE 10, FIGURE 90