Scagelia E.M.Wollaston, 1972

Holotype species: Scagelia occidentalis (Kylin) Wollaston

Currently accepted name for the type species: Scagelia americana (Harvey) Athanasiadis

Original publication and holotype designation: Wollaston, E.M. (1972 '1971'). Antithamnion and related genera occurring on the Pacific coast of North America. Syesis 4: 73-92.

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Description: Thallus erect, axes with whorls of 2-4 usually unequal determinate branchlets on each cell. Branch apices curved with irregular initiation of branchlets. Gland-cells lateral on branchlets. Procarps on basal (supporting) cells of branchlets which continue to elongate. Auxiliary cell leading to carposporophyte with rounded groups of carposporangia. Spermatangia on special short branches. Tetrasporangia on lower cells of branchlets, cruciately or tetrahedrally divided. Characterized by continued elongation of fertile branch and branchlet to give several carposporophytes at intervals along axes. Also differs from Antithamnionella in unequal branchlets.

Information contributed by: E.M. Wollaston. The most recent alteration to this page was made on 2017-01-25 by M.D. Guiry.

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

Most recent taxonomic treatment adopted: Athanasiadis, A. (1996). Morphology and classification of the Ceramioideae (Rhodophyta) based on phylogenetic principles. Opera Botanica 128: [1]-216, 108 figs.

Comments: Widely distributed especially west coast of north America including Aleutian Is. and Bering Sea. Also in Pacific Ocean.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=33058

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 25 January 2017. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 22 November 2024