Tetrallantos Teiling, 1916

Holotype species: Tetrallantos lagerheimii Teiling

Original publication: Teiling, E. (1916). Schwedische Planktonalgen. II. Tetrallantos, eine neue Gattung der Protococcoideen. Svensk Botanisk Tidskrift 10(1): 59-66.

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Description: Thalli colonial, forming 2- or mostly 4-celled coenobia to 45 µm, these aggregated into compound colonies of up to 16 cells (rarely more), embedded in wide, structureless, mucilaginous envelope. Cells lunate with rounded ends 12-22.5 x 2.5-10 µm. In type species two of the cells in same plane with ends touching to form a ring, the other two attached at one end to nodes of first two cells, and lie in separate plane(s); in T. novae-geronae cells variously aggregated. Cell walls smooth. Cells uninucleate; chloroplasts single and parietal with one pyrenoid. Asexual reproduction by autospores; 2, 4 (mostly) or 8 per sporangium and organized into coenobia; daughter colonies released by rupture of parental cell walls, these sometimes remaining distinct and attaching different coenobia within colony. Flagellated stages and sexual reproduction unknown. Tetrallantos planktonic in freshwater; type species reported from all continents except Antarctica in tropical to temperate environments; T. novae-geronae, recently described from Cuba. Genus placed in subfamily Tetrallantoideae with Schmidledesmus and Schroederiella.

Information contributed by: D. Garbary and E. Hegewald. The most recent alteration to this page was made on 2015-05-13 by Salvador Valenzuela Miranda.

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

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=43476

Citing AlgaeBase
Cite this record as:
Salvador Valenzuela Miranda in Guiry, M.D. & Guiry, G.M. 13 May 2015. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 25 November 2024