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Chondracanthus spinosus (Kützing) Guiry

Classification:
Empire Eukaryota
Kingdom Plantae
Subkingdom Biliphyta
Phylum Rhodophyta
Subphylum Eurhodophytina
Class Florideophyceae
Subclass Rhodymeniophycidae
Order Gigartinales
Family Gigartinaceae
Genus Chondracanthus

Pictures

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Chondracanthus spinosus (Kützing) Guiry
Northern California. 08 Mar 2011. Wendell Wood (ww@oregonwild.org). © Wendell Wood (ww@oregonwild.org).

 

Publication details
Chondracanthus spinosus (Kützing) Guiry in Hommersand, Guiry, Fredericq & Leister 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.

Basionym
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.

Homotypic Synonym(s)
Mastocarpus spinosus Kützing 1847
Gigartina sinposa (Kützing) Harvey 1853
Gigartina spinosa (Kützing) Harvey 1853

Heterotypic Synonym(s)
Gigartina ornithorhynchos J.Agardh 1849
Gigartina eatoniana J.Agardh 1899
Gigartina armata J.Agardh 1899
Gigartina asperifolia J.Agardh 1899
Gigartina farlowiana J.Agardh 1899
Gigartina ehinata N.L.Gardner 1927
Gigartina echinata N.L.Gardner 1927
Gigartina armata var. echinata (N.L.Gardner) E.Y.Dawson 1961
Chondracanthus armatus Hughey 1996

General environment
This is a marine species.

Description
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.

Habitat
Low intertidal, exposed rocky headlands to sheltered localities.

Detailed distribution with sources (Click to Load)

Key references
Braune, W. (2008). Meeresalgen. Ein Farbbildführer zu den verbreiteten benthischen Grün- Braun- und Rotalgen der Weltmeere. pp. [1]-596, pls 1-266 (colour photographs). Ruggell: A.R.G. Gantner Verlag.

Hughey, J.R. & Hommersand, M.H. (2008). Morphological and molecular systematic study of Chondracanthus (Gigartinaceae, Rhodophyta) from Pacific North America. Phycologia 47: 124-155.

Schubert, N., Garcia-Mendoza, E. & Pacheco-Ruiz, I. (2006). Carotenoid composition of marine red algae. Journal of Phycology 42: 1208-1216.

Created: 10 February 1998 by M.D. Guiry

Verified by: 25 August 2009 by M.D. Guiry

Accesses: This record has been accessed by users 1757 times since it was created.

Verification of data
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Linking to this page: http://www.algaebase.org/search/species/detail/?species_id=3524

Citing AlgaeBase
Cite this record as:
Guiry, M.D. & Guiry, G.M. 2018. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 20 November 2018.

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