OF SOUTH AUSTRALIA. 
157 
Subfamily Dicranemeae Schmitz. 
Comprises the single genus Dicranema. 
DICRANEMA Sonder. 
Frond terete, setaceous, dichotomous, formed of three strata ; the medul- 
lary of slender, closely-packed, longitudinal filaments; the intermediate of 
angular cells, smaller towards the circumference ; the cortical of vertically 
seriated, minute, coloured cells. Cystocarps hemispherical, containing 
within a thick pericarp, pedicellate, obovate spores, attached to a fibro- 
cellular placenta. Zonate tetrasporangia lodged in the swollen tips of the 
branches. 
Dicranema Grevillei Sonder. 
Frond 5 cm. to 10 cm. high, ultra-setaceous, dichotomo-fastigiate ; axils 
widely spreading ; apices patent or divaricate. Cystocarps near the 
obtusely horn-like tip. Pod-like tips erecto-patent. 
tetraspores in the dilated extremities; f, cross- 
section, showing the tetraspores in situ; g, 
tetraspores removed. (After Harvey.) 
