Holotype species: Weeksia reticulata Setchell
Original publication and holotype designation: Setchell, W.A. (1901). Notes on algae, I. Zoe 5: 121-129.
Taxonomic status: currently recognized as a distinct genus.
Gender: This genus name is currently treated as feminine.
Most recent taxonomic treatment adopted: Saunders, G.W. (2008). A DNA barcode examination of the red algal family Dumontiaceae in Canadian waters reveals substantial cryptic diversity. 1. The foliolse Dilsea-Neodilsea complex and Weeksia. Botany 86: 773-789.
Description: Foliose, orbiculate to reniform, cleft or uncleft, with or without conspicuous veins radiating from base, with short stipe and discoid holdfast. Initially uniaxial, becoming multiaxial with maturity. Medulla of somewhat inflated, elongate cells and rhizoids, the latter from inner cortical cells. Cortex of subspherical cells, progressively smaller toward cuticle. Secondary pit connections lacking. Carpogonium terminating a distally recurved, usually unbranched, adventitious filament with enlarged distal cells. Fertilized carpogonium usually dividing, each product fusing with a cell of the carpogonial branch, then producing connecting filaments that contact a succession of auxiliary cells distally situated on separate, adventitious filaments between two or more enlarged, humerus-like cells. Cystocarps compact, of numerous small carposporangia, which released their spores through a carpostome. Spermatangia superficial, cut off by oblique walls. Tetrasporophyte isomorphic. Tetrasporangia small, cruciate, attached subbasally.
Information contributed by: S.C. Lindstrom. The most recent alteration to this page was made on 2 Feb 2016 by M.D. Guiry.
Comments: A subtidal genus of the eastern North Pacific: Gulf of Alaska to Mexico.
Numbers of names and species: There are 6 species names in the database at present, of which 5 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: 02 February 2016 by M.D. Guiry
Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=37223
Please cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 22 March 2019.