Albrightia J.J.Copeland, 1936

Holotype species: Albrightia tortuosa J.Copeland

Original publication and holotype designation: Copeland, J.J. (1936). Yellowstone thermal Myxophyceae. Annals of the New York Academy of Sciences 36: 1-232.

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Description: Thallus of small clusters of free filaments; filaments of the same morphology, flexuous, irregularly and freely tangled, laterally branched, cylindrical, composed of simple trichomes and sheaths. Sheaths thick, firm, homogeneous or layered, coloration unknown. trichomes uniseriate, cylindrical, composed from moniliform rows of cells, with deep constrictions at crosswalls, with a terminal growth; branches of the same width and morphology as the main filaments and trichomes; types of branching: T-type, pseudodichotomous V-type. Cells barrel-shaped to cylindrical, narrowed at both ends, usually longer than wide, blue-green with a granular content and sometimes with prominent solitary granules; apical cells more cylindrical, end cells rounded. Known chroococcal stages (?, 2-celled groups). Heterocytes and akinetes not known.

Cell division evidently transverse, forming 2- few-celled hormogonia, differentiating terminally at the ends of branches (well-known type in the Fisherellaceae). Filament dissociation may produce "chroococcoid" stages.

Information contributed by: J. Komárek. The most recent alteration to this page was made on 2023-03-06 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: This little known genus occurs among other cyanophytes, or on the surface of their thalli, in slightly thermal, alkaline springs in Yellowstone National Park (U.S.A.).

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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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

Linking to this page: https://www.algaebase.org/search/genus/detail/?genus_id=46472

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 06 March 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 04 May 2024