Description: English: Gloeocapsa sanguinea, Cyanobacteria. Date: November 1910. Source: Fig. 31.2 at
File:A manual of poisonous plants (Page 185, Fig. 31) BHL11346758.jpg. Original source:
A manual of poisonous plants : chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations, Cedar Rapids, Ia.: The Torch Press, 1910-11, p. 185, Fig. 31.
doi:10.5962/bhl.title.10913. Author: L. H. (Louis Hermann) Pammel, 1862-1931. Image cropped, digitally enhanced.