Sonderophycus Denizot, 1968

Holotype species: Sonderophycus australis (Sonder) Denizot

Currently accepted name for the type species: Sonderophycus capensis (Montagne) M.J.Wynne

Original publication and holotype designation: Denizot, M. (1968). Les algues floridées encroutantes (à l'éxclusion des Corallinacées). pp. [1]-310, 227 figs. Paris: Laboratoire de Cryptogamie, Muséum National d'Histoire Naturelle.

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Description: Thallus cartilaginous, weakly calcified hypobasally and with clustered cystoliths, or uncalcified, composed of broadly spreading often loosely-attached lobes. Blades multiaxial, composed of equally developed spreading parallel mesothallial or hypothallial filaments from which arise assurgent dorsal perithallial filaments at mostly narrow angles (to 45°) from the distal ends of hypothallial and mesothallial cells. Ventral perithallus absent or extensive. Rhizoids multicellular, long and fibrous. Hairs absent. Tetrasporangial nemathecia superficial, with or without paraphyses. Female nemathecia with paraphyses. Auxiliary cell branches 5 or 6 cells long; suprabasal cell acting as the auxiliary cell. Carposporophytes extensive, composed of richly branched gonimolobes with many small carposporangia that develop directly from the diploidised auxiliary cell or the connecting filament. Spermatangia forming dense globose clusters.

Information contributed by: K.R. Dixon (2018). The most recent alteration to this page was made on 2020-06-21 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 masculine.

Most recent taxonomic treatment adopted: Sherwood, A.R., Paiano, M.O., Spalding, H.L. & Kosaki, R.K. (2020). Biodiversity of Hawaiian Peyssonneliales (Rhodophyta): Sonderophycus copusii sp. nov., a new species from the Northwestern Hawaiian Islands. Algae. An International Journal of Algal Research 35(2): 145-155, 3 figures.

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=43011

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 21 June 2020. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 09 December 2023