GENERA AND SPECIES. 
Frond pinnate; segments ovate-cuneate, often 
oblique, usually incised ; sori often confluent in 
large patches... = cs 3 
Annual, minute ; frond often ealitaty, f or 2- foinete 
glabrous, thin and delicate ; ; segments broadly ob- 
ovate or fan-shaped, each with a single sorus 
Cheilanthes. 
Frond glabrous, the recurved margin over the sori 
slightly altered; 2- or 3-pinnate, ultimate segments 
small, irregularly crisped at the margin 
Frond glabrous, bipinnate ; the indusium as in Preris 
with the sori as in Cheilanthes fi si 
Fronds beset underneath with a dense sn eBNHTOUe: tie 
recurved margin over the sori unaltered. 
Pinne densely covered with brown woolly hairs ... 
Pinnz densely covered with colourless bristly scales 
203 
rutaefolia 
leptophylla 
tenuifolia 
Clelandi 
vellea 
distans 
