Annales des Sciences Naturelles, Botanique, Série 6, 6: 213, f. 14. (Gomont 1892). Desikachary, Cyanophyta 209, t. 38, f. 2 & t. 39, f. 9-10 (Desikachary 1959).
DESCRIPTION. — Trichome more or less straight, slightly bent from upper side, not attenuated or very slightly attenuated, not constricted at the cross-walls, sometimes cross-walls granulated; end-cell flat rounded, not capitate (Fig. 8E).
DIMENSION. — Trichome 6.6-12.5 µm broad and cells 1.8-2.3 µm long.
ENVIRONMENT & HABITAT. — Freshwater species; planktonic in lake temperature 2°C.