36 
THE FERN WORLD OF AUSTRALIA. 
Found on the Bunya Mountains and Bellender Ker Range in 
Queensland ; at the Richmond River, Tweed River and New 
England in N. S. Wales. I have not received any fertile specimens 
of the tree-fern which Mr. W. Hill brought a short time ago from 
Fraser's Island, but from the sterile state of one of the plants in the 
Botanic Gardens, Brisbane, it seems to connect D. Youngi^ with 
D. squarrosa, Sw. of New Zealand. 
D. davallioides, R. Br. Rhizome long creeping. Stipes 
chestnut brown, glossy slightly hairy. Frond membranous, flaccid, 
somewhat hairy, decompound. Secondary pinnee three to four 
inches long. Pinnules numerous, distinct, half to one inch long, 
pinnatifid, the lowest lobe on the upper side longer than the others. 
Sori small, globular, almost marginal in the sinus or at the base of 
the upper side of the lobes of the pinnules. Indusium cupular 
(cup^shaped), about half line diameter, entire or scarcely lobed, 
adnate on the upper side to the frond. This delicate and beautiful 
fern grows in great profusion along the sides of many Queensland 
Creeks, but seems more generally met with in N. S. Wales, also at 
Cape Otway, Victoria. 
XVIII. — Deparia, Hook, et Grev. 
Rhizome creeping. Fronds large, compound. Sori globular, 
terminating a vein, protruding from the margin of the frond and 
sometimes stipitate beyond it. Indusium membranous, shortly and 
broadly cup-shaped or two-valved. Name from depas, a cup, form 
of involucre, or indusium, 
D. prolifera, Hook. Fronds two to three feet long, pinnate. 
Lower pinnae six inches to one foot long, deeply pinnatifid ; segments 
ovate or oblong, somewhat falcate, quarter to half-inch long, all 
connected by a winged rhachis two to three lines broad, sori sessile 
upon the margin of the frond. 
D. nephrodioides, Baker. Rhizome creeping. Fronds two to 
three feet high, rather firm and shining, twice or thrice pinnate. 
Secondary pinn^ two to three inches long, pinnate or deeply pin- 
natifid ; lower pinnules pinnatifid half to one inch long, upper ones 
gradually smaller confluent and toothed only. Sori marginal and 
prominent but sessile, globose. Indusium very shortly and broadly 
divided into two valves, partly formed by a slight dilatation or obtuse 
tooth of the frond. Saddle, between Mount Gower and Lidgebird, 
Lord Howe's Island, New South Wales. 
XIX. — Davallia, Sm. 
Rhizome creeping, often densely covered with soft scales or seta3. 
•Fronds compound, often large, or rarely in species not Australian 
undivided. Sori globular or slightly elongated, terminating veins 
close under or at a little distance from the margin. Indusium from 
under the sorus either with the margins adnate to the frond and 
