Chondracanthus spinosus (Kützing) Guiry 1993

Chondracanthus spinosus (Kützing) Guiry

Chondracanthus spinosus (Kützing) GuiryNorthern California - 08 March 2011. Wendell Wood (

Publication Details
Chondracanthus spinosus (Kützing) Guiry 1993: 115

Published in: Hommersand, M.H., Guiry, M.D., Fredericq, S. & Leister, G.L. (1993). New perspectives in the taxonomy of the Gigartinaceae (Gigartinales, Rhodophyta). Proceedings of the International Seaweed Symposium 14: 105-120, 41 figs.

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Type Species
The type species (lectotype) of the genus Chondracanthus is Chondracanthus chauvinii (Bory) Kützing.

Status of Name
This name is of an entity that is currently accepted taxonomically.

Mastocarpus spinosus Kützing

Type Information
Type locality: California [Monterey Co., California, USA; Hughey & Hommersand 2008: 139]; (Kützing 1847: 24) Lectotype: Dr T. Coulter; 1831-1833; L; 941.27.143 (Hughey & Hommersand 2008: 139)

Origin of Species Name
Adjective (Latin), spiny.

General Environment
This is a marine species.

Thalli 25-60 cm high, coarse and thick, greenish-red to dull red or black, consisting of several blades from a discoid holdfast; blades highly variable, 1-12 cm wide, pinnate, distichous, to ligulate or lanceolate in shape, arising from a short, cylindrical stipe and narrowly expanding into an apophysis 7-10 cm long, the stipe and smooth apophysis once or twice forked, the blade with few to many irregular pinnate branches of variable thickness; cortex 5-7 cell layers thick; medullary cells variable in size and shape, 1.5-20 mm diameter. Cystocarps 1.0-1.4 mm in diameter on surface and marginal papillae, terminal on a pedicel or basal on an elongate cylindrical papilla; carpospores subspherical, 13-18 mm in diameter. Spermatangial sori superficial, indefinite on thin simple papillae with acute tips. Tetrasporangial sori 210-320 µm in diameter, forming ellipsoidal rings at the bases of papillae; tetrasporangia 39-50 µm diameter, in chains 8-10 cells long.

Low intertidal, exposed rocky headlands to sheltered localities.

Created: 10 February 1998 by M.D. Guiry.

Last updated: 25 August 2009

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Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 25 August 2009. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.; searched on 26 September 2022

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