Tikvahiella Kraft & Gabrielson, 1983

Holotype species: Tikvahiella candida Kraft & P.W.Gabrielson

Original publication and holotype designation: Kraft, G.T. & Gabrielson, P.W. (1983). Tikvahiella candida gen. et sp. nov. (Solieriaceae, Rhodophyta), a new adelphoparasite from southern Australia. Phycologia 22: 47-57.

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Description: Plants are minute (3-5 mm tall) parasites of Solieria robusta and consist of endophytic filaments pit connected to host cells and erumpant pustules that are irregularly lobed. Axes are multiaxial, the medulla being broad and laxly filamentous and the cortex pseudoparenchymatous. Carpogonial branches are 3-celled, the fertilized carpogonium issuing two unbranched connecting filaments. The auxiliary cell and adjoining cells form an “auxiliary cell complex" prior to diploidization. Either a single or 2 gonimoblast initials arise thallus-inwardly, the carposporophyte ultimately encompassing a fusion cell that incorporates proximal cells of the auxiliary-cell cortical filament, surrounded by a few layers of sterile gonimoblasts bearing single terminal carposporangia. Scattered nutritive filaments in the vicinity of the carposporophyte result in a rudimentary filamentous involucre. Cystocarps are deeply sunken in the axes and are ostiolate. Gametophytes are monoecious, the superficial spermatangial mother cells either confined to separate lobes or aggregated at the bases of female lobes. Tetrasporangia are scattered and laterally attached to bearing cells.

Information contributed by: G.T. Kraft. The most recent alteration to this page was made on 2010-10-08 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: Endemic to southern Australia, where it is recorded subtidally to 5 m depths at two widespread localities.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=42806

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 08 October 2010. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 19 April 2024