Cyanocystis Borzì, 1882

Holotype species: Cyanocystis versicolor Borzì

Original publication and holotype designation: Borzì, A. (1882). Note alla morfologia e biologia delle Alghe Ficocromacee. Fam. IIIa. Rivulariacee. Nuovo Giornale Botanico Italiano 14: 272-315, pls XVI, XVII.

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Description: Solitary cells or groups of cells, joined by the basal end to the substratum. Cells more or less polarized, +/- spherical, oval or club-shaped, sometimes narrowed to the basis, attached to the substrate by the small gelatinous pad and by rounded basis; apical end widely rounded. Around cells firm, thin sheaths, later "opened" on the apical end (pseudovaginae). Cell content greyish blue-green, olive green or pinkish red, finely granular, always without aerotopes.

Information contributed by: J. Komárek. The most recent alteration to this page was made on 2023-03-03 by M.D. Guiry.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

Gender: This genus name is currently treated as feminine.

Most recent taxonomic treatment adopted: Strunecký, O., Ivanova, A.P. & Mares, J. (2022 '2023'). An updated classification of cyanobacterial orders and families based on phylogenomic and polyphasic analysis (Review). Journal of Phycology 59(1): 12-51.

Comments: All species live in aquatic biotopes, attached to different plants. Eight species, including the type species, are freshwater (mountain creeks, non-polluted streams, swamps, pools, tropical stagnant streams), occurring mainly on aquatic mosses or on other algae, with different areas of distribution. Marine species, often referred to "Dermocarpa", occur attached to littoral macroalgae.

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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in CD format. These AlgaeBase descriptions are now being continually updated, and each current contributor is identified above. The PSA and AlgaeBase warmly acknowledge the generosity of all past and present contributors and particularly the work of Dr Parker.

Descriptions of chrysophyte genera were subsequently published in J. Kristiansen & H.R. Preisig (eds.). 2001. Encyclopedia of Chrysophyte Genera. Bibliotheca Phycologica 110: 1-260.

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Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 03 March 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.; searched on 22 June 2024

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