Holotype species: Orculifilum denticulatum S.C.Lindstrom
Original publication and holotype designation: Lindstrom, S.C. (1987). Orculifilum denticulatum (Dumontiaceae, Rhodophyta), a new genus and species from the northeast Pacific. Phycologia 26: 129-137.
Taxonomic status: currently recognized as a distinct genus.
Most recent taxonomic treatment adopted: Schneider, C.W. & Wynne, M.J. (2007). A synoptic review of the classification of red algal genera a half a century after Kylin's "Die Gattungen der Rhodophyceen". Botanica Marina 50: 197-249.
Description: Uniaxial, firm, distinctly flattened, ligulate, distichously to subdichotomously branched to four orders. Midrib and lateral veins sometimes evident. Margins denticulate. Rhizoids surrounding axial cell and four periaxial cells, which are attached near middle of axial cell. Cortex of isodiametric cells, progressively smaller toward cuticle. Cells uninucleate. Secondary pit connections lacking. Monoecious or dioecious. Carpogonium terminating a long, distally recurved, sparingly proximally branched, adventitious filament. Distal cells enlarged and lobed. Connecting filaments contacting a succession of intercalary, distal auxiliary cells on separate, adventitious, percurrent filaments. Secondary connecting filaments and gonimoblast initials arising from remnant of connecting filament attached to auxiliary cell. Cells of gonimoblast maturing into many, small carposporangia. Gonimoblast fusion cell lacking. Carpostome rudimentary. Spermatangia superficial, cut off by oblique walls. Tetrasporophyte unknown.
Information contributed by: S.C. Lindstrom. The most recent alteration to this page was made on 7 Oct 2010 by M.D. Guiry.
Comments: Strictly subtidal. Known only from the vicinity of Juneau, Alaska
Numbers of names and species: There is only one species or infraspecific name in the database at present, which has 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
Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=42713
Please cite this record as:
Guiry, M.D. & Guiry, G.M. 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 25 September 2018.