Gattya Harvey, 1855

Holotype species: Gattya pinnella Harvey

Original publication and holotype designation: Harvey, W.H. (1855). Some account of the marine botany of the colony of western Australia. Transactions of the Royal Irish Academy 22: 525-566.

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Description: Thallus to 4(-8) cm high, firm, prostrate below, flattened, sympodially and pinnately branched, composed of segments representing growth phases marked by constrictions in thallus. Axial cells each bearing 3(-4) determinate branchlets each several times tri-(or di-) chotomously branched with outer cells cohering in gelatinous sheath. Rhizoidal cortication lacking except in lower, prostrate thallus. Procarp and carposporophyte as in Crouania with 4-celled carpogonial branch on large supporting cell near branch apex. Auxiliary cell, cut off from supporting cell, giving rise to carposporophyte with several successive rounded groups of carposporangia surrounded by upward elongation of branchlets from axial cells below. Spermatangia terminal on outermost cells of determinate branchlets. Tetrasporangia, sessile, successively developed on basal cells of branchlets, tetrahedrally-divided.

Information contributed by: E.M. Wollaston. The most recent alteration to this page was made on 2010-10-06 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: Known only from southern coast of Australia and from Japan. Rare.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=35382

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 06 October 2010. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 22 November 2024