258 
THE SEAWEEDS 
the scarcely changed ramelli, in the cells surrounding the central axis, 
triangularly divided. Antheridia ovate, emerging from the superficial 
depressions around the apices of the ramelli, within a thin membrane formed 
of translucent cellules, carrying many small granules. Colour purplish- 
brown, gelatinous. 
Chondria tenuissima (G. et W.) C. Agardln 
Fronds densely tufted, 12 cm. to 30 cm. long, about 1 mm. in diameter 
below, attenuated upwards. Stem simple or divided, bearing closely-set, 
slender, alternate, virgate, erecto-patent, undivided branches, often bearing 
a similar set. Branches slender, tapering to base and apex, more or less 
densely clothed with setaceous ramuli ; ramuli simple, 4 mm. to 8 mm. long. 
Fig. 115 . — Chondria fusifolia. Fig. 116 . — Chondria tenuissima. 
tapering to base and apex, irregularly inserted. Cystocarps ovate, sub- 
sessile, borne profusely on the sides of the ramuli. Tetraspores contained 
in the ramuli, globose, scattered. Stem consists of six large cells surround- 
ing a central one, with a wide cortex of smaller cells. Substance tender, 
adhering to paper. Colour pale pinkish-purple, fading to yellow. 
South Australia (Investigator Strait), Tasmania (Georgetown), Mediter- 
ranean and Atlantic. 
Chondria fusifolia Hooker f. 
Frond 20 cm. to 25 cm. high, very irregular, pyramidal, with long 
spreading ramuli, virgate; ramelli widely spread, fusiform, lanceolate. 
Stichidia linear, carrying tetrasporangia at the base. 
Tasmania, Southern Australia. 
