Monographs Details: Endospora nigra 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:Xenococcaceae
Description:Species Description - Families free among other algae, containing 2-4, more rarely 8 cells, the 8-celled families 11-14 µ diam.; cells 3.5-5 µ diam. in the family, contents obscured by the very dark-colored walls, in part almost black; resting spores 5-6 µ diam., spherical to irregular.

Distribution and Ecology - Growing on trees north of Sabana Grande, no. 925, type.

Discussion:

PLATE 5, FIGURE 53