Type Locality: French Guiana, South America.
Distribution: South America: Brazil, French Guiana; Asia: Malaysia; Australia.
“Plants polyoecious or monoecious, very or moderately mucilaginous, 7-16.5 cm high, 800-2300 mm in diameter, irregularly branched. Whorls dense, obconical, pear-shaped, compressed, contiguous. Fascicles 2-3, primary fascicles straight, 10-17(-19) cell-storeys, proximal cells cylindrical or ellipsoidal, 5-10 mm in diameter, 25-60 mm long, distal cells ellipsoidal, obovoidal, hemispherical, 4-10 mm in diameter, 6-20 mm long, terminal hairs numerous, short. Cortical filaments well-developed. Secondary fascicles numerous, reaching the length of primary ones. Spermatangia spherical to ovoid, 5-6 mm in diameter, terminal or subterminal on fascicles. Carpogonium-bearing branches straight, long, differentiated from fascicles, 80-200 mm long, consisting of 8-30 cells, arising from periaxial cells, rarely from proximal cells. Involucral filaments numerous. Carpogonia 3-6 mm in diameter at the base, 7-9 mm in diameter at the apex, 27-40 mm long, trichogyne club-shaped, obovoidal, lanceolate, sessile. Carposporophytes pedunculate, single or in pairs, spherical, 80-220 mm in diameter, in middle or outer third of whorl. Carposporangia obovoidal or club-shaped, 8-10.5 mm in diameter, 12-18 mm long.”
Kumano, S. 2002. Freshwater red algae of the world. Biopress Ltd. 375pp.