Division | Rhodophyta |
Class | Florideophyceae |
Order | Halymeniales |
Family | Grateloupiaceae |
Basionym | Delesseria filicina J.V.Lamouroux |
Thallus erect, up to 20cm height, brownish violet to dark red colour, firm and lubricous, attached by small discoid holdfasts. Fronds one to several, sub-cylindrical or compressed to occasionally flat, upper one third simple, the basal portion with lateral branches; branching monopodial and highly variable; primary fronds1-3(5) mm broad, the marginal branchlets sub-distichous and somewhat narrow, often only 200µm width. Thallus 150-200µm; medullary filaments are loosely entangled, 3-4 µm diameter, inner cortex 2-4 layered, the cells stellate irregular to round, 15-20µm diameter; outer cortex 2-5 layered, compact, cells in anticlinal rows small and scattered, elongate ovoid, 35-40µm and 18-20µm broad. Cystocarps scattered, immerse, subspherical, 180-200µm, carpospores rounded, 18-20µm diameter.