Saccorhiza Bachelot de la Pylaie, 1830, nom. cons.

Holotype species: Laminaria bulbosa J.V.Lamouroux

Currently accepted name for the type species: Saccorhiza polyschides (Lightfoot) Batters

Original publication and holotype designation: Bachelot de la Pylaie, A.J.M. (1830 '1829'). Flore de Terre-Neuve et des Iles Saint-Pierre et Miclon. Livraison [Algae]. pp. 1-128. Paris: Typographie de A. Firmin Didot, rue Jacob, No. 24.

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Description: Sporophytes annual, a single stipe attached initially by a small disc, sometimes with a few short haptera, soon covered by a discoid circumferential swelling (rhizogen) of the stipe, which forms downward-growing hapteroid protuberances that surround the initial holdfast, succeeded by one or more whorls of haptera; all haptera unbranched. Stipe flattened, broadening to form a single lanceolate or expanded and split blade. Hair-pits on young blades, deciduous with age; costae lacking. Medulla containing long, thick-walled longitudinal conducting cells (solenocysts) and lateral connecting cells (allelocysts) rather than sieve tubes. Mucilage ducts absent. Sporangia sori discontinuous patches at base of blades, paraphyses lacking a hyaline appendage, zoospores with a red eyespot. Gametophytes of S. polyschides dioecious and sexually dimorphic, those of S. dermatodea monoecious. Marine, littoral to 19 m, distributed either in the western Mediterranean and the Atlantic from the Tropic of Cancer to southern Norway (S. polyschides), or from Novaya Zemblya to Norway, Ellesmere I., and northern Massachusetts (S. dermatodea).

Information contributed by: E. C. Henry. The most recent alteration to this page was made on 2015-10-19 by M.D. Guiry.

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

Gender: This genus name is currently treated as feminine.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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. 19 October 2015. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.; searched on 22 April 2024

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