Stipitochrysis Korshikov, 1941

Holotype species: Stipitochrysis monorhiza Korshikov

Original publication and holotype designation: Korshikov, A.A. (1941). On some new or little known flagellates. Archiv für Protistenkunde 95: 22-44.

Description: Cells naked, elongate obovoid to subspherical, at the narrowed posterior end with a contractile rhizopodial stalk, by which the cell is attached to surfaces. Stalk usually single, up to several times as long as the cell, sometimes ramified or two stalks per cell. Anterior end of the cell obtusely rounded, sometimes with a single short flagellum or two unequal flagella. Instead of flagella there is often a single thread-like rhizopodium which may be branched, or sometimes with 2 or 3 separate rhizopodia at the anterior end or laterally on the cell. In cells living in the mucilage of other algae the flagella and rhizopodia are usually protruding from the mucilage of the host. Protoplast with one or two parietal chloroplasts, stigma and pyrenoid present or lacking, and twocontractile vacuoles which are variably positioned in the cell. Reproduction not observed. Stomatocysts known for one species. Occasionally reported from freshwater, mainly from acid streams and moorland ditches. Epilithic or epiphytic in the mucilage of other algae (e.g. Chaetophora, Mougeotia, Staurastrum).

Information contributed by: H. R. Preisig. The most recent alteration to this page was made on 2021-10-18 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: Kawai, H. & Nakayama, T. (2015). Introduction (Heterokontobionta p.p.), Cryptophyta, Dinophyta, Haptophyta, Heterokontophyta (except Coscinodiscophyceae, Mediophyceae, Fragilariophyceae, Bacillariophyceae, Phaeophyceae, Eustigmatophyceae), Chlorarachniophyta, Euglenophyta. In: Syllabus of plant families. Adolf Engler's Syllabus der Pflanzenfamilien. Ed. 13. Phototrophic eukaryotic Algae. Glaucocystophyta, Cryptophyta, Dinophyta/Dinozoa, Haptophyta, Heterokontophyta/Ochrophyta, Chlorarachnniophyta/Cercozoa, Chlorophyta, Streptophyta p.p. (Frey, W. Eds), pp. 11-64, 103-139. Stuttgart: Borntraeger Science Publishers.

Comments: Kristiansen & Preisig (2001: 9) record this genus as alternately being a member of the family Ochromonadaceae Lemmerman 1899.

Verification of Data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.

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=44830

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 18 October 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 10 May 2024