Asterocapsa H.-J.Chu, 1952

Holotype species: Asterocapsa gloeotheceformis H.-J.Chu

Original publication and holotype designation: Chu, H.-J. (1952). Some new Myxophyceae from Szechwan province, China. Ohio Journal of Science 52: 96-101.

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Description: Colonies more or less spherical, in irregular agglomerations which form grumose, gelatinous, reddish, olive-green, yellow to golden yellow or brown, or light bluish mass, later macroscopic; colonial envelopes thick, stiff, with confluent layers at the margin, colorless, yellow or pink, up to yellowish brown or dark brown; surface of gelatinous envelopes both of individual cells and colonies covered by minute or stout wart-like projections of different lengths; cells enclosed in their own thick-sheathed envelopes, lamellated or not, not confluent. Cells spherical, oblong or more or less irregular, enclosed in 2-4-8-16 in one special colony; cell content homogeneous or finely granular, without aerotopes, olive-green, bright blue-green or brownish green.

Information contributed by: J. Komárek and M.D. Guiry. 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: Strunecky, O., Ivanova, A.P. & Mares, J. (2023). An updated classification of cyanobacterial orders and families based on phylogenomic and polyphasic analysis (Review). Journal of Phycology 59(1): [1-40] 12-51.

Comments: According to Chu (1952), cell division is by irregular binary fission within sheaths, in two or three planes, multiplication by vegetative division, liberation of cells from envelopes, or by fragmentation of a colony. Aplanospores present.

Subaerophytic, known from wet rocks in China (Szechwan, Anhui), Nepal and India (Himalayas), Japan and probably from central America. Poorly defined genus; several species possibly could be resting stage of Gloeocapsa or Gloeocapsopsis (see also Endospora). If the genus is more clearly defined, probably more species occur in aerophytic localities of southeast Asia.

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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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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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 31 May 2023

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