Richelia J.Schmidt, 1901
Holotype species: Richelia intracellularis J.Schmidt
Original publication and holotype designation: Ostenfeld, C.H. & Schmidt, J. (1902). Plankton fra det Røde Hav og Adenbugten (Plankton from the Red Sea and the Gulf of Aden.). Videnskabelige Meddelelser fra Dansk Naturhistorisk Forening 1901: 141-182.
Request PDFDescription: Filamentous; trichomes solitary, short, few-20-celled, straight or slightly arcuate, more or less cylindrical along the whole length, without sheaths or gelatinous envelopes, isopolar, slightly constricted at crosswalls. Cells isodiametric or shorter than wide, blue-green. Heterocytes more or less spherical, develop terminally, on one or (later) on both ends; they are wider than vegetative cells. Akinetes missing. Cells divide crosswise. Reproduction by dissociation of trichomes, typical hormogonia not observed. Marine, endophytic within cells (intracellular) or rarely epiphytic (on the surface of frustules) of oceanic, planktonic Diatoms (Rhizosolenia , Hemisulus, Chaetoceros, etc.), mainly in warm, tropical seas.
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.
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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,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=46174
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 22 December 2024
