Hypneocolax Børgesen, 1920
Holotype species: Hypneocolax stellaris Børgesen
Original publication and holotype designation: Børgesen, F. (1920). The marine algae of the Danish West Indies. Part 3. Rhodophyceae (6). Dansk Botanisk Arkiv 3: 369-504, Figs 361-435.
Request PDFDescription: Plants form diminutive clusters of axes radiating from a basal region of emergent endophytic filaments. Although pigment is usually absent or greatly reduced compared to the hosts, which are always species of Hypnea, some plants can be darkly pigmented (Mshigeni 1976), suggesting that parasitism may be facultative. Reproductive structures are generally typical of the family, although bisporangia rather than tetrasporangia are the general product of tetrasporophytes. Studies of the host/parasite interaction by Apt (1984) show that the infestations reduce host growth rates by 40-70%, but do not affect carrageenan quality or quantity.
Information contributed by: G.T. Kraft. The most recent alteration to this page was made on 2014-03-13 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 masculine.
Most recent taxonomic treatment adopted: Reynolds, S.C.P. (2002). A catalogue of alien plants in Ireland. pp. [4], 1-413. Dublin: National Botanical Gardens, Glasnevin.
Comments: Distribution: Originally described from the Caribbean Sea, Hypneocolax is now also recorded in Hawaii and southern Australia.
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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera,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=39976
Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 13 March 2014. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 26 April 2024
