( 2 4 ) 
Habitats. Wet rocks or old timber in mountainous 
districts. More common than H. Tun- 
bridgense. 
(See also page 53 .) 
GROUP I; GENUS X. 
LASTREA. 
Sori. Nearly round, growing from the backs of the 
venules. Indusium reniform,and attached to 
the frond by its indented portion. 
Venules. Free. 
GROUP I; GENUS X; SPECIES I. 
LASTREA CRISTATA. (Crested Fern.) 
Plate X. 
Fronds. Narrow, oblong, pinnate. Pinnae deltoid, 
deeply pinnatifid, rather distant, broad at base; 
lobes bluntly oblong. Rachis green. Stipes 
nearly as long as the leafy part of the frond, 
and thinly clothed towards its base with a few 
blunt, light-brown scales. 
