THE FERN WORLD OP AUSTRALIA. 
43 
or broad, rather rigid, prominently veined, the under surface as well 
as the rhachis usually hispid ; the young fronds usually of a 
purplish color. Sori usually almost contiguous though not confluent. 
Indusia much recurved, orbicular slightly reniform. Common 
throughout Queensland and N. 8. Wales, also Genoa River, 
Victoria. 
XXIII. — Hypolepis, Bernh. 
Rhizome creeping. Fronds compound, usually large, the pinnules 
penniveined. Sori marginal, short in the sinus of the teeth of the 
pinnules. Indusium a small scale continuous with the margin, 
recurved over the sorus, the spore-cases attached at its base. Name 
from hypo, beneath, and lepis a scale, referring to position of sorus. 
H. tenuifolia, Bernh. Rhizome long, clothed with dense white 
hairs. Fronds four to seven feet high including the long hairy, 
stout stipes, and often two feet broad, tri-quadripinnate ; primary 
pinnse or branches spreading ; secondary and tertiary narrow, linear 
or oblong one and a half to two inches long, deeply pinnatifid. 
Lobes linear-oblong, blunt, bluntly crenate, Sori few or several to 
each segment in the sinus of the teeth, the reflexed scale-like 
indusium at first often covering the sorus but in an advanced stage 
almost concealed under the sorus or quite witliered a^^ay. The 
plant usually covered with glandular hairs. Found on the borders 
of scrubs throughout Queensland and N. S. Wales. I have a 
portion of a frond from Gippsland whicli seems ratlier to belong to 
this plant than Polypodium punctatum with which it is sometimes 
confused. 
XXTY. — Cheilanthes, Sw. 
Rhizome tufted or creeping. Fronds usually small, twice or 
thrice pinnate with small lobed segments. Sori globular and 
distinct at the end of the veinlets or oblong by the confluence of 
two or more, all marginal, the sliglitly altered teeth or lobes bent 
over them and forming an indusium with the spore-cases inserted at 
their base as in Pteris. Veinlets forked from a central nerve. 
Name from cheilos, a lip, and anthos a flower ; from the form of 
the indusium. 
C. tenuifolia, Sw. Curly fern. Rhizome knotty or shortly 
horizontal. Fronds caispitose from a few inches to over one foot 
high, broadly ovate triangular in outline, the stipes and main 
rhachis red-brown glabrous or with a few hairs. Primary pinnae 
nearly opposite in distant pairs, often a few inches long and broad, 
elegantly pinnate a second or a third time, the tertiary pinnules 
deeply j)innatifid, the ultimate segments in all cases ovate or oblong 
obtuse one to four lines long. Sori numerous round the margins, 
nearly contiguous, with the small rounded teeth or lobes bent over 
them. Widely distributed over the Australian Colonies and Tas- 
mania. 
