Monographs Details: Nodularia willei 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:Nostocaceae
Description:Species Description - Filaments 9-10.5 µ diam., straight, short; trichomes 8.4-8.8 µ diam.; cells disk-shaped or very much compressed spheres; 3.8-4.5 µ long, contents finely granular, aeruginous; heterocysts subspherical to compressed-spherical, slightly larger than the cells, with hyaline walls changing to pale amber; spores seriate between the heterocysts, 9.5-10 µ diam. densely granular, walls hyaline, changing to brown at maturity, very thin and smooth; sheath almost transparent, soft gelatinous.

Distribution and Ecology - Growing in a pool near Laguna Guanica, no. 1817 a, type.

Discussion:PLATE 12, FIGURE 15