Involucrana Baldock & Womersley, 1968

Holotype species: Involucrana meredithiana (J.Agardh) Baldock & Womersley

Original publication and holotype designation: Baldock, R.N. & Womersley, H.B.S. (1968). The genus Bornetia (Rhodophyta, Ceramiaceae) and its southern Australian representatives, with description of Involucrana gen nov.. Australian Journal of Botany 16: 197-216, 35 figs, 4 plates. [in English]

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Description: Thallus to 25 cm, much branched with 1-3 laterals from each axial cell, the first-formed often becoming indeterminate. Densely corticated below with rhizoids. Cells large, multinucleate. Procarps borne on 3-celled fertile branch borne on sub-terminal cell of lateral branch. Carpogonial branch 4-celled on one (supporting cell) of 2 pericentral cells on subapical cell of fertile axis. Auxiliary cell, cut off from supporting cell, leading to carposporophyte development with clavate, granular carposporangia terminal on massive fusion cell. Involucral branches formed on sterile cells. Spermatangial heads single on short lateral branches. Polysporangia in branch clusters on lateral branches. Differs from other genera of Spondylothamnieae in features of female reproductive system and polysporangia with up to 32 spores.

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: Recorded from southern Australia, epiphytic, moderately common in drift.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=40349

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 19 April 2024