Division | Rhodophyta |
Class | Florideophyceae |
Order | Gigartinales |
Family | Solieriaceae |
Basionym | Dicranema filiforme Sonder |
Thalli purplish red colour, erect, upto 25cm height and 0.5-1.5 mm in breadth; several fronds arise from discoidal holdfast, 2–6 mm diameter. Thallus solid, terete, regularly dichotomous to sub-dichotomously branched, dense, broad, intricate tufts. Branches gradually narrowing towards the apex. Thalli multiaxial and linear, in cross section, a peripheral layer of densely placed rectangular or columella cells, 9-13µm length and 4-6µm breadth; cortex consists of 4-7 layers with ovoid to roundish-polygonal cells, 26–86 µm diameter, medulla composed of densely packed, thick-walled cells about 10-18µm broad.
Tetrasporangia scattered on the surface, developing as unicellular laterals of young cortical filaments; sporangia zonate measuring 32-55µm long and 14-26µm broad.