Crenacantha Kützing, 1843
Holotype species: Crenacantha orientalis Kützing
Original publication and holotype designation: Kützing, F.T. (1843). Phycologia generalis oder Anatomie, Physiologie und Systemkunde der Tange. Mit 80 farbig gedruckten Tafeln, gezeichnet und gravirt vom Verfasser. pp. [part 1]: [i]-xxxii, [1]-142, [part 2:] 143-458, 1, err.], pls 1-80. Leipzig: F.A. Brockhaus.
Request PDFDescription: Plants globose and lime-encrusted, consisting of entangled, uniseriate filaments bearing short whorls of branchlets. Cells cylindrical or barrel-shaped. Method of reproduction unknown. Only known from a fountain at Hebron in Israel. It has been suggested that this incompletely described and little-known taxon is a depauperate growth form of Draparnaldia.
Information contributed by: D. M. John. The most recent alteration to this page was made on 2023-06-26 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: Hansgirg, A. (1889). Über die Gattung Crenacantha Ktz., Periplegmatium Ktz. u. Hansgirgia De Toni. Flora (Jena) 72(1): 58-59, 1 fig.
Nomenclatural note
"Was die Stellung der Gattung Crenacantha im Systeme der chloro- phyllgrünen Algen anlangt, so ergibt sich aus den im Vorstehenden mit- getheilten Daten, dass sie in ihrem Aufbau, Verzweigung etc. manche Anklänge an die Gattung Draparnaldia zeigt, von dieser aber durch das Nichtvorhandensein von Haarbildungen und Schleimabsonderung sich wesentlich unterscheidet. Die nahe Verwandtschaft der beiden soeben genannten Gattungen, resp. die Zugehörigkeit der Gattung Crenacantha zu den Chaetophoreen, scheint mir jedoch trotz der oben erwähnten Verschiedenheiten, welche zwischen der Gattung Crenacantha und der ihr am nächsten stehenden Chaetophoreen-Gattung Draparnaldia bestehen, über jeden Zweifel erhaben zu sein. Wegen der Unvollständigkeit unserer bisherigen Kenntnisse über die Gattung Crenacantha mag diese einstweilen, solange uns der Entwickelungsgang, die Art der Fortpflanzung nicht näher bekannt wird, als eine besondere Gattung im Systeme der Algen neben der Gattung Draparnaldia angeführt werden)." (Hansgirg 1889: 58). [As far as the position of the genus Crenacantha in the system of chlorophyll-green algae is concerned, it follows from the data given above that in its structure, branching, etc. it shows some resemblance to the genus Draparnaldia, but differs from it in its absence of hair formation and mucus secretion differs significantly. The close relationship of the two genera just mentioned, resp. the affiliation of the genus Crenacantha to the Chaetophoreae seems to me to be beyond any doubt, despite the differences mentioned above, which exist between the genus Crenacantha and the Chaetophoreen genus Draparnaldia, which is closest to it. Because of the incompleteness of our previous knowledge about the genus Crenacantha, this may be listed as a special genus in the system of algae next to the genus Draparnaldia, as long as we do not know the course of development, the type of reproduction.] - (26 June 2023) - M.D. Guiry
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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=47461
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 26 June 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 15 June 2025
