Corycus Kjellman, 1889

Holotype species: Corycus nigrescens Kjellman

Currently accepted name for the type species: Corycus lanceolatus (Kützing) Skottsberg

Original publication and holotype designation: Kjellman, F.R. (1889). Om Beringhafvets algflora [About the Bering Sea algae]. Kongl. Svenska Vetenskaps-Akademiens Handlingar 23(8): 1-58, pls I-VII.

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Description: Plants caespitose, attached with discoidal holdfast, club-shaped when young, lanceolate or compressed, polystichous, first monosiphonous terminated with phaeophycean hair, later becoming parenchymatous, hollow in the upper part, composed of large, roundish, colorless medullary cells and small, cubic, pigmented cortical cells. Each cell contains several disc-shaped chloroplasts with pyrenoids. Phaeophycean hairs scattered on entire thallus, often in groups. Unilocular sporangia and plurilocular sporangia formed on the same or separate thalli, transformed from cortical cells. Unilocular sporangia formed among the cortical cells, slightly immersed, roundish or irregular in shape up to 100 _m in length. Plurilocular sporangia ovoid or prism-shaped, slightly projected from thallus surface. Plurispore normally biflagellated, containing a chloroplast with a stigma. Endemic in cold water area of South America and Arctic Sea. In culture study of C. lanceolatus, the plurispores from macrothalli germinated unipolarly and developed into uniseriate, branched, sterile hecatonematoid microthalli, which soon developed into new macrothalli (Asensi 1975). Unispores developed into microthalli with plurilocular sporangia. He reported sexual reproduction among plurispores and concluded that the microthalli are gametophytes.

Information contributed by: H. Kawai. The most recent alteration to this page was made on 2014-06-20 by M.D. Guiry.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

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, 1 fig., 1 table.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=42726

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 20 June 2014. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 26 December 2024