OF SOUTH AUSTRALIA. 
315 
at the base, tapering to a very acute point; their joints twice or thrice as 
long as broad, contracted at the dissepiments. The stichidia are exceed- 
ingly minute, and born on long, slender jointed pedicells issuing from the 
ramelli ; they produce tetrasporangia in a triple row. The cystocarps are 
ovate-urceolate, with a very prominent mouth. Colour a fine crimson. Sub- 
stance rather flaccid. 
Victoria (Sealers 7 Cove), Tasmania. 
Dasya spyridioides Falkenberg. 
Frond very much branched, 8 or more cm. long, very strongly corticate, 
penieillate, regular, the filaments of the pencills furcate, monosiphonous, 
rigid, onlf at the base polysiphonous, above changed into stichidia. 
Stichidia pedicellate, monosiphonous, one to three articulations, bearing 
tetrasporangia arranged in straight lines. 
South coast of Australia. 
Fig. 152 . — Dasya sypridioides. 
Dasya adunca J. Agardh. 
Frond dwarf, terete, creeping, sparsely branched, ramuli articulate, 
ecorticate, branched and squarrose; ramelli monosiphonous, issuing from 
the articulations, alternate, subdivaricate, pinnate, elongate, curved ; the 
articulations of the ramuli are four siphoned. Fruit unknown. 
West Australia (King George Sound). 
Dasya atactica J. Agardh. 
Frond minute, 4 cm. to 7 cm. long, arboriform, the ramuli on the upper 
part of the stem dichotomous, subpinnate, subcorymbose, hirsute, thinly 
corticate above, articulate, polysiphonous ; the ramelli polysiphonous below, 
