Loefgrenia Gomont, 1896
Holotype species: Loefgrenia anomala Gomont
Original publication and holotype designation: Wittrock, V.B., Nordstedt, C.F.O. & Lagerheim, G. (1896). Algae aquae dulcis exsiccatae praecipue scandinavicae quas adjectis algis marinis chlorophyllaceis et phycochromaceis. Vol. Fasc. 26-29 pp. nos 1201-1400..
Request PDFDescription: Thallose; filaments heteropolar, attached by one end to the substrate, erect, near the base laterally branched (true branching of the V-type ?), joined into bluegreen, to 1 mm long, more or less rigid fascicles. Filaments (trichomes) sheathless, always uniseriate, at the end narrowed in a long cellular hair, at the base 24 _m wide, constricted at the crosswalls. Cells cylindrical, longer than wide. Heterocytes and akinetes not observed. Cells divide evidently crosswise, reproduction was not described, hormogonia were not observed. The single (type-) species grows epiphytically, on submersed aquatic plants and algae, mainly reported from freshwater Batrachospermum. Known only from Brazil, maybe only a stage of Nostochopsis.
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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,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=43584
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 26 November 2024
