Division | Rhodophyta |
Class | Florideophyceae |
Order | Ceramiales |
Family | Rhodomelaceae |
Basionym | Fucus dasyphyllus Woodward |
Thalli 10-20 cm height, cylindrical brown-red colour. Main axis simple, (sometimes once forked), branches irregular and equally thick, shortening towards apex so that frond looks pyramidal shape; regularly ramified; ultimate ramuli short, patent, truncate with narrowed bases, usually 2-5mm long sometime up to 20mm. Cross section of thallus shows a central axial cell surrounded by 5 pericentral siphon, surrounded by several layers of corticating cells gradually decreasing in size towards outside, outermost small, rounded, coloured. Articulations visible in younger parts. Tetrasporangia in short clavate ramuli spirally disposed.
Ecology
Inter-subtidal form, lithophytic.
Distribution in India
Dwarka (Gujarat); Bombay (Maharashtra); Krusadai Island (Tamil Nadu).