Crassitegula C.W.Schneider, C.E.Lane & G.W.Saunders, 2006

Holotype species: Crassitegula walsinghamii C.W.Schneider, C.E.Lane & G.W.Saunders

Original publication and holotype designation: Schneider, C.W., Lane, C.E. & Saunders, G.W. (2006). Crassitegula walsinghamii (Sebdeniaceae, Halymeniales), a new red algal genus and species from Bermuda based upon morphology and SSU and rDNA sequence analyses. European Journal of Phycology 41: 115-124.

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Description: Thalli dorsiventrally organized with flabellate or reniform to subcircular and ovate blades, initially attached by a submaginal holdfast, the older blades sending down secondary holdfasts from the ventral surface, attaching to other blades or the substratum; blades proliferating new blades from the margins, some fusing with other blades in the same plane; medulla filamentous, comprised of hyaline, mostly periclinal, branched filaments, attached to the inner cortical cells; inner cortex grading to progressively smaller and more pimented layers of outer cortical cells; tetrasporangia developed from cortical cells, irregularly cruciate, formed in raised nemathecia enveloped by attenuated cortical cells; cystocarps forming on the dorsal surface, slightly elevating the surface of the blade by thickening the cortex; all cells of the gonimolobes developing into carposporangia; carposporophytes surrounded by elongated cortical cells forming loose involucres; elongate spermatangia formed in elevated patces on dorsal and ventral surfaces, producing spermatia terminally.

The most recent alteration to this page was made on 2011-08-30 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.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=50647

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 30 August 2011. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 23 April 2024

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