Analipus Kjellman, 1889

Holotype species: Analipus fusiformis Kjellman

Currently accepted name for the type species: Analipus filiformis (Ruprecht) Papenfuss

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 composed of rhizomatous perennial basal disc and annual erect thallus arising from the disc. Erect thalli caespitose, simple or branched, hollow, yellowish brown to dark brown in color, up to 40 cm in height. Unilocular and plurilocular sporangia usually formed on separate thalli. Each cells contain a single parietal cup-shaped chloroplast without pyrenoid and a lot of physodes, exceptionally inner cells contain several discoidal chloroplasts. Plurilocular sporangia transformed from assimilatory filaments leaving 1-3 sterile terminal cells, uniseriate or biseriate. Unilocular sporangia formed from the basal part of assimilatory filaments, ovoid or ellipsoid, among assimilatory filaments. Widely distributed in the cold temperate water area of North Pacific Ocean. Abundant in intertidal zone. Nakahara (1984) showed isomorphic alternation of generations between unilocular sporangial plants and dioecious plurilocular sporangial plants. Unispores and plurispores pyriform, biflagellated with longer anterior flagellum containing a chloroplast with a stigma. Gametes (plurispores) are slightly anisogamous. Most of unfused gametes develop into haploid plants of its original sex or form unilocular and plurilocular sporangia together, however, meiosis does not occur in those unilocular sporangia. Zygote develop into diploid unilocular sporangial plant. Unispores, gametes and zygotes germinate forming emptied embryospore by migration of cellular contents migrate into germination tube, develop into compact disc. Erect thalli arise from the disc.

Information contributed by: H. Kawai. The most recent alteration to this page was made on 2014-06-21 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.

Comments: Hormosirene and ectocarpene are suggested to be actual sexual pheromones (Müller and others 1990). Nelson and De Wreede (1989) reported the dominance of plurilocular sporangial plants in western coast of North America, while both unilocular and plurilocular plants are common in Japanese coast.

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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.

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M.D. Guiry in Guiry, M.D. & Guiry, G.M. 21 June 2014. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.; searched on 16 August 2022

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