Antithamnion cruciatum   (C. Agardh) Naegeli,  1847 (Algae)
Organism information awaits expert curation
Class: Florideophyceae

Image copyrights: Ignacio Barbara

Color: Dull rose-red

Plants tufted, somewhat intricate below, alternately branched, but above rather sparingly divided. The branches long, at the tips the branchlets densely tufted or appearing ocellate-congested. Height to 5 cm; the main axis below 50-90 µ diameter, cells 90-300 µ long. Lateral branches spreading, short, of rather even length, opposite in alternately placed pairs, or in fours, producing a 4-rowed aspect. Branchlets alternate, in 2 rows, or somewhat unilateral, 9-14 µ diameter, with cells 4-8 diameters long.

Gland cells numerous, near the bases of the ultimate branchlets, applied to the upper side of 3 cells. Tetrasporangia 75-85(-100) µ long, 50-55(-70) µ diameter, replacing the branchlets of the last order, mostly on the upper side of the short branches, sessile or short-stalked. Cystocarps to 400 µ diameter.

Synonym (s)
Callithamnion cruciatum C. Agardh, 1827
(Homotypic synonym)
Callithamnion cruciatum var. radicans J.Agardh, 1841
(Heterotypic synonym)
Callithamnion pumilum Harvey, 1833
(Heterotypic synonym)
Callithamnion imbricatum Schousboe ex Suhr, 1840
(Heterotypic synonym)
Callithamnion cruciatum var. pumilum (Harvey) Harvey, 1841
(Heterotypic synonym)
Antithamnion cruciatum f. radicans (J.Agardh) Hauck, 1882
(Heterotypic synonym)
Antithamnion cruciatum var. pumilum (Harvey) Reinke 1891
(Heterotypic synonym)
Antithamnion cruciatum var. radicans (J.Agardh) F.S.Collins, 1900
(Heterotypic synonym)
Callithamnion cruciatum f. radicans (J.Agardh) Rosenvinge, 1924
(Heterotypic synonym)
Antithamnion cruciatum var. profundum Feldmann-Mazoyer, 1941
(Heterotypic synonym)

Common Name (s)
Economic Importance and Threats

Habitat:  Coastal


• Tamil Nadu, Tiruchendur (Lat: 8.48) (Long: 78.12) INDIA

Literature Source(s)
  • Subramamian, B (1985) An annotated list of ceramiaceous algae (Rhodophyta) of Tiruchendur coast, south India Seaweed Research and Utilization Seaweed Research and Utilization Association, Marine Fishereies-623 520, Tamil Nadu, India 7(2) 71-83 Available at - NIO, Goa
  • Sahoo, D; Nivedita and Debasish (2001) Seaweeds of Indian coast S. B. Nangia, A. P. H. Publishing Corporation, New Delhi 283 pp Available at - NIO, Goa
  • Oza, RM and Zaidi, SH (2001) A revised checklist of Indian marine algae Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Silva, PC; Basson, PW and Moe, RL (1996) Catalogue of the benthic marine algae of the Indian Ocean University of California Press 79 1259 pp Available at - NIO, Goa
  • (2006) Algaebase Available at -
  • Taylor, WR (1972) Marine algae of the eastern tropical and subtropical coasts of the Americas University of Michigan Press 870 pp Available at - NIO, Goa

Page last updated on:2011-03-30

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