OF SOUTH AUSTRALIA. 
229 
Hypoglossum denticulatum J. Agardh. 
Less than 5 cm. high with stout midrib. Folioles decurrent on the 
midrib, margins with acute deltaeform teeth. 
South Australia (Guichen Bay). 
Fig. 92 . — Hypoglossum denticulatum : a, plant; b, 
a fruit leaf, bearing a sorus of 
tetraspores; c, section of the 
membrane of the frond, and semi- 
section of the midrib; d, frustule, 
showing the surface cells and the 
toothed margin. . (After Harvey.) 
Hypoglossum Lacepedeanum Reinbold. 
Fifteen cm. high. Similar to preceding, but with entire margins. 
South Australia (Guichen Bay, Investigator Strait). Apparently 
fairly rare. 
