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

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

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

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

Chondracanthus canaliculatus (Harvey) Guiry
Cape Arago, in Coos Co. Oregon. 05 Feb 2011. Wendell Wood (ww@oregonwild.org). © Wendell Wood (ww@oregonwild.org).

Chondracanthus canaliculatus (Harvey) Guiry
Cape Arago, in Coos Co. Oregon. 26 Feb 2011. Wendell Wood (ww@oregonwild.org). © Wendell Wood (ww@oregonwild.org).

 

Gigartina fabriciana Lyngbye

Chondracanthus canaliculatus (Harvey) Guiry Cape Arago, in Coos Co. Oregon
© Wendell Wood (ww@oregonwild.org)

Publication details
Chondracanthus canaliculatus (Harvey) 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
Gigartina canaliculata Harvey

Type information
Type locality: San Francisco, California (Harvey 1840: 409). Type: David Douglas; 1831; TCD sine numero (Dawson 1961: 267). Notes: The type consists of two clumps and a fragment of a cystocarpic specimen (Hughey & Hommersand 2008: fig. 63). Isotype: L (Hommersand et al. (1993: 115).

Origin of species name
Adjective (Latin), canaliculate, with a longitudinal channel or groove (Stearn 1973).

Homotypic Synonym(s)
Gigartina canaliculata Harvey 1840

Habitat notes
mid and high intertidal; tide pool; epilithic (Augyte & Shaughnessy, 2014). - (5 Dec 2014) - Wendy Guiry

General environment
This is a marine species.

Description
Thalli up to 25 cm tall, cartilaginous, yellow-green to purple-black, densely clumping, consisting of several to many erect shoots from a primary disc-shaped holdfast; later abundantly stoloniferous; erect shoots subcylindrical, 0.5-2 mm wide, pinnate to irregularly dichotomously branched, the upper third abundantly provided with short, distichous, determinate, simple or mostly compound spinulose branchlets 1-3 mm long and variable in thickness; cortex 7-8 cell layers thick; medullary cells variable in size and shape, 2-20 µm wide. Cystocarps 700-950 µm in diameter, globose, solitary on simple spinose pinnules, or compound in groups on large, protruding, echinate ramuli; carpospores subspherical, 12- 20 µm in diameter. Spermatangia slightly nemathecial in surface cortical layers on thin, crisped, feathery, triangular terminal pinnules with attenuated tips. Tetrasporangial sori 100-300 mm in diameter, borne on all sides in upwardly pointing determinate ramuli or pinnules that vary from short (3-5 mm) densely crowded and abruptly acute to long (2-3 cm) widely scattered forms with 2-3 sharp teeth, or unbranched and subulate; tetrasporangia 34-45 µm diameter, formed in chains 4-6 cells long.

Habitat
Saxicolous in the mid- to high intertidal on exposed coasts

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: 07 November 2008 by Wendy Guiry

Accesses: This record has been accessed by users 3868 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=3522

Citing AlgaeBase
Cite this record as:
Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 17 August 2019.

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