Type species: a type species (generitype) appears not to have been designated.
Original publication:Okamura, K. (1902). Nippon Sorui-meii [Book listing Japanese Algae]. pp. i-vi, 1-276. Tokyo: Keigyosha. [in Japanese]
Precise date of publication25 March 1902
Taxonomic status: currently recognized as a distinct genus.
Most recent taxonomic treatment adopted: Yoshida, T. (1998). Marine algae of Japan. pp. [1-2], 1-25, 1-1222. Tokyo: Uchida Rokakuho Publishing Co., Ltd. [in Japanese]
Description: Life history diplohaplontic with alternation of large sporophyte bearing unilocular meiosporangia with paraphyses (sori) and microscopic dioecious and oogamous, heteromorphous gametophytes (for detail, see Laminaria). Sporophyte perennial (life-span unknown, at least 2 years), composed of holdfast, stipe and undivided blade. Meristematic region situated at transition region between stipe and blade. Holdfast with filamentous hapteres, stipe solid, cylindrical to compressed, smooth and up to 6.5 cm in length. Blade linear to lanceolate with plane median fascia, elevated to one surface; marginal portions covered with dense gyrate puckerings arranged pinnately along both sides of the median fascia. Sori develop on both sides of the blade. Mucilage ducts present in blade and stipe. Haploid chromosome number in K. crassifolia is n = 32 (Yabu and others 1985). In K. crassifolia growth is strongly seasonal (Kanda 1938-41, Yamamoto 1986). Structure of sporophyte as in Laminaria composed of photosynthetic meristoderm, parenchymatic cortex and central medulla. Genus endemic to the cold-temperate northwestern Pacific (Japan: Hokkaido and Kurile islands). Growing on rocks in the shallow subtidal together with Laminaria, Costaria, and Undaria.
Information contributed by: I. Bartsch. The most recent alteration to this page was made on 21 Oct 2016 by Wendy Guiry.
Numbers of names and species: There are 2 species names in the database at present.
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.
Miyabe, K. (1902). [On the Laminariaceae of Hokkaido]. Hokkaido Aquatic Products Investigation Reports Hokkaido Government Colonization Resources Development Department 3: 1-60, 41 pls. [in Japanese]
Miyabe, K. (1902). On the Laminariaceae of Hokkaido. Journal of the Sapporo Agricultural College 1: 1-50, pls I-XXIX.
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: 21 October 2016 by Wendy Guiry
Linking to this page: http://www.algaebase.org/search/genus/detail/?genus_id=36215
Please cite this record as:
Wendy Guiry in Guiry, M.D. & Guiry, G.M. 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 22 September 2018.