Silva Center for Phycological Documentation: Index Nominum Algarum

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Indexes (very large files) to all taxa:

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Cosmarium depressum var. achondrum (Boldt) W. West & G.S. West
Monogr. Brit. Desmid. II: 177, pl. LXII: figs. 6-9. 1905.

Basionym: See Cosmarium phaseolus var. achondrum Boldt 1885

Retrieve all Cosmarium
Get original family assignment from Index Nominum Genericorum
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