Monographs Details: Gloeothece prototypa 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:Cyanobacteriaceae
Description:Species Description - Families floating free, congregated into small masses, or forming a continuous stratum, composed of 2-4 cells, very abundantly existing as single cells, those of 4 cells 7-8 µ diam.; cells cylindrical, 0.8-1.2 µ diam., 2-3 .µ long, pale aeruginous; tegument very nearly colorless, homogeneous, about equal in diam. to the cells.

Distribution and Ecology - Growing on limestone, between Hatillo and Arecibo, no. 1377 a, type, and no. 1378 a; on a water pipe near a stream, Maricao, no. 1147 a; on limestone at Hato Arriba, Arecibo, no. 1407 b; and between Arecibo and Utuado, no. 1481 a.

Discussion:

PLATE 3, FIGURE 32

This is a very diminutive species of Gloeothece, when young appearing with but very little tegument, and that almost transparent. It finally develops a visible sheath or tegument, which combines 2-4 cells, very rarely more, into small families, where it has the typical Gloeothece character and resembles, to a less degree, certain Bacteria.