Phormidium scytonematicola
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Authority
Gardner, Nathaniel L. 1927. New Myxophyceae from Porto Rico. Mem. New York Bot. Gard. 7: 1-144. pl. 1-23.
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Family
Phormidiaceae
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Scientific Name
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Description
Species Description - Filaments short, crooked, forming a more or less compact layer on the filaments of the host, prostrate, with the ends free and more or less erect, 2.5-3 µ diam.; cells quadrate to 3 times as long, pale aeruginous, protoplast homogeneous; cross-walls inconspicuous; apices straight, blunt, not capitate; sheath very thin, inconspicuous.
Distribution and Ecology - Growing in depressions in rocks and on Scytonema at Hacienda Catalina, Palmer, no. 747 a, type; on rocks by the road north of Maricao, no. 1252 a.
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Discussion
This species of Phonnidium is so abundant on some of the filaments of the host as to bind them into small symplocoid fascicles, and appears to restrict their growth.