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Sargassum polyceratium var. ovatum(Collins) W.R Taylor

PhaeophytaPhaeophyceaeFucalesSargassaceaeSargassumpolyceratium var. ovatum
On rocky substratum
Europe (Turkey), North America (Florida), Central America (Panama), Caribbean Islands (Bahamas, Barbados, Caicos Islands, Cayman Islands, Cuba, Hispaniola, Jamaica, Lesser Antilles, Puerto Rico, Trinidad & Tobago, and Virgin Islands), South America (Brazil, Colombia, Venezuela), Southwest Asia (Turkey).
Intertidal to 3 m
Plants brown, crowded, leathery, densely branched to 60 cm high. Distinct holdfast, firmly attached to rocky substratum. Main axis developing from holdfast, and up to 3 cm in length. One to several lateral branches developing from main axis, with secondary branching and sometimes tertiary branching as well. Specimens found do not all have spines on lateral branches, a characteristic of the species. Blades closely crowded, curved, with serrated margin, and dispersed surface cryptostomata. Younger branches with blades to 2.5 cm long and 1 cm wide. Fertile branches with blades to 2.0 cm long and 0.8 cm wide. Air bladders without spines to 4 mm diameter, on short alate stalk to 3 mm in length. Receptacles axillary on blades, dichotomously branched, to 6 mm in length. Specimens analyzed were monoecious, with female and male gametangia in separate conceptacles on the same receptacle.
In Bocas Del Toro
LocalityIsla Carenero, Flat Rock Beach
Compiled by
Olga Camacho-Hadad & Jimena Samper-Villarreal
Tropical Field Phycology Field Book, STRI, Bocas de Toro, 2008.
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