Coilodesme Strømfelt, 1886
Holotype species: Coilodesme bulligera Strömfelt
Original publication and holotype designation: Strömfelt, H.F.G. (1886). Einige für die Wissenschaft neue Meeresalgen aus Island. Bot. Zbl. 26: 172-173.
Taxonomic status: currently recognized as a distinct genus.
Most recent taxonomic treatment adopted: Silberfeld, T., Rousseau, F. & Reviers, B. de (2014). An updated classification of brown algae (Ochrophyta, Phaeophyceae). Cryptogamie Algologie 35(2): 117-156.
Description: Plants mostly epiphytic, attached by a small disk or with rhizoids penetrating the host tissue. Thalli membranous, saccate, cylindrical to flattened, entire or with frayed divisions, with short stipe, polystichous, composed of inner layer consisting of large, thick-walled, almost colorless cells and cortical layer consisting of smaller pigmented cells which contain several disc-shaped chloroplasts with pyrenoids. Unilocular sporangia formed within the cortical layer, scattered over the entire surface of the thallus except for the lowermost part. Plurilocular sporangia not detected on erect thallus (excluding C. californica). Unispores pear-shaped typically flagellated, containing a chloroplast with stigma. Wynne (1972) cultured unispores of C. californica and obtained microthalli forming plurilocular sporangia. The plurispores developed into plethysmothalli forming unilocular sporangia, however, macroscopic plant did not develop. On the other hand, unispores of C. bulligera and C. fucicola directly formed macrothalli.
Information contributed by: H. Kawai. The most recent alteration to this page was made on 20 Jun 2014 by M.D. Guiry.
Comments: Distributed in cold and cool temperate water area of Pacific Ocean.
Numbers of names and species: There are 11 species names in the database at present, as well as 2 infraspecific names. Of the species names, 10 have been flagged as accepted taxonomically on the basis of the listed literature under the species name. In some instances, opinions on taxonomic validity differ from author to author and users are encouraged to form their own opinion. AlgaeBase is a work in progress and should not be regarded as a definitive source only as a guide to the literature..
Names: ('C' indicates a name that is accepted taxonomically; 'S' a homotypic or heterotypic synonym; 'U' indicates a name of uncertain taxonomic status, but which has been subjected to some verification nomenclaturally; 'P' indicates a preliminary AlgaeBase entry that has not been subjected to any kind of verification. For more information on a species click on it to activate a link to the Species database):
Click here to also show infraspecific names in the list below.
Verification of data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.
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.
Created: 28 December 2000 by M.D. Guiry
Verified by: 20 June 2014 by M.D. Guiry
Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=42718
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2020. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 16 February 2020.