Benzaitenia Yendo, 1913

Holotype species: Benzaitenia yenoshimensis Yendo

Original publication and holotype designation: Yendo, K. (1913). Some new algae from Japan. Nyt Magazin for Naturvidenskaberne 51: 275-288, pls XIII, XIV.

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Description: A parasite causing pulvinate outgrowth on host consisting of monosiphonous parasite filaments and enlarged host cells. Emerging from pulvinate outgrowth are short polysiphonous filaments with 4-6 pericentral cells; apical cells of erect filaments soon lose their activity and identity. Pericentral cells divide by transverse and longitudinal-tangential divisions and subsequent transverse divisions in gametophytes, but not in tetrasporophytes, resulting in tiers of cells, the lowermost in pit-connection with the central cell. Trichoblasts not formed; upright axes unbranched. Reproductive structures formed on upright branches. Tetrasporangial branchlets with 6 pericentral cells, each producing a tetrasporangium; sporangial initials cut off before cover cell initials which form 2-3 cover cells. Segment producing procarp forms 6 pericentral cells, the 5th being fertile (Morrill 1976) but 4 may be produced in some specimens (Yendo 1913). Procarps borne directly on main axis, comprised of 4-celled carpogonial branch and 1-2 sterile groups attached to the supporting cell; 1-3 procarps per axis, but only a single cystocarp matures. Cystocarps ovoid and without an ostiole. Male axes with 4-6 pericentral cells; spermatangia produced directly on pericentral cells.

Information contributed by: R.E. Norris. 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.

Gender: This genus name is currently treated as feminine.

Most recent taxonomic treatment adopted: Gil-Rodríguez, M.C. & Haroun, R. (2002). Vegetative and reproductive phenology of Chondrophycus perforatus and Laurencia viridis (Rhodomelaceae, Rhodophyta) in Tenerife, Canary Islands. Constancea 83.20: .

Comments: On Chondria and Laurencia, known only in Japan.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=41999

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 25 April 2024