Schottera Guiry & Hollenberg, 1975

Holotype species: Schottera nicaeensis (Duby) Guiry & Hollenberg

Original publication and holotype designation: Guiry, M.D. & Hollenberg, G.J. (1975). Schottera gen. nov. and Schottera nicaeensis (Lamour. ex Duby) comb. nov. (=Petroglossum nicaeense (Lamour. ex Duby) Schotter) in the British Isles. British Phycological Journal 10: 149-164, 15 figs.

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Description: Plants reach 10 cm in length and consist of flattened, linear, subdichotomous blades borne on terete stalks arising from a system of prostrate or creeping stolons. Spermatangia form in sori on blade surfaces. Carpogonial branches are 4 celled, and cystocarps have a distinctive cross-sectional structure (Lewis and Kraft 1979) in which isolated large medullary cells are ringed by elongate bearing cells with chains of 2-4 carposporangia. Cystocarps are embedded in the fronds, swelling them to both sides, and lack ostioles. Tetrasporangial nemathecia occur in linear patches oriented at right angles to the line of the bearing frond, often forming several fertile patches in series, the patches occurring congruently on both sides of the frond.

Information contributed by: G.T. Kraft. The most recent alteration to this page was made on 2017-01-23 by M.D. Guiry.

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

Most recent taxonomic treatment adopted: Schneider, C.W. & Wynne, M.J. (2007). A synoptic review of the classification of red algal genera a half a century after Kylin's "Die Gattungen der Rhodophyceen". Botanica Marina 50: 197-249.

Comments: Distribution: Plants occur on rock, pilings, or mixed with sponges from low intertidal to 15 m depths. The species is recorded from Britain to Portugal and the Mediterranean in the Northern Hemisphere, and from South Africa, southeastern Australia and Chile in the south. Although Lewis and Kraft (1979) speculated that Schottera might be a recent introduction to Australia, as suggested by its association with major ports and lack of early records, Santelices et al. (1989) cast doubt on this theory because of the widespread distribution of the species in Chile, where it had also gone unreported.

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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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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Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 23 January 2017. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.; searched on 26 September 2022

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