Botrytella Bory de Saint-Vincent, 1822

Holotype species: Botrytella micromora Bory

Original publication and holotype designation: Bory de Saint-Vincent, J.B.G.M. (1822). Botrytella. Dict. Class. Hist. Nat. 2: 425.

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Description: Heterotrichous thallus organization; the erect filaments are branched with lateral and terminal true phaeophycean hairs. Furthermore, the genus is characterized by the mode of formation of plurilocular sporangia. They are formed by transformation of short whorled laterals which develop in the apical part of longer laterals. The erect filaments may show sympodial branching (see Polytretus for further details). Growth is diffuse intercalary and the cells contain several disc-shaped chloroplasts. The life history of Botrytella micromora (as Sorocarpus micromorus) has been studied by Pedersen (1977), Kornmann and Sahling (1984). Abe (1935) reported on slightly anisogamous sexual reproduction; sexual reproduction has not been observed by subsequent workers.

Information contributed by: P. M. Pedersen. 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.

Comments: Nomenclatural note: The nomenclatural type is Ectocarpus siliculosus ß uvaeformis Lyngbye (1819). This plant was given specific rank by Bory (1822) and later also by Pringsheim (1862) - as Sorocarpus uvaeformis (Lyngbye) Pringsheim - based on the same nomenclatural type, but Pringsheim was obviously unaware of Botrytella micromora Bory. Silva (1950) proposed to conserve Sorocarpus Pringsheim against Botrytella Bory. The nomenclature committee for algae had this proposal for consideration during the Paris congress in 1954, but Sorocarpus is not on the list of nomina generica conservanda proposita to be ratified by the general committee (Anonymous 1954). Resurrection of Botrytella is therefore justified (Kornmann and Sahling 1988).

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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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. 20 June 2014. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.; searched on 10 December 2023

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