60 
THE FERN WORLD OF AUfiTRALTA. 
scarcely* smaller, lobes reaching three-quarter way to midrib or 
li early so. Sori rather large quite marginal and confined to the 
lobes not reaching below the sinuses. Indusium orbicular-reniform. 
Eockingliam and Trinity Bays, Queensland. 
A. molle, Sw. Rhizome short thick, one to two feet high on 
stipites of equal length, simply pinnate, nearly glabrous or quite 
hairy, of a light soft green color. Pinn^ lanceolate, the longer ones 
three to six inches long, or more often acuminate, regularly pin- 
natifid, the lobes sometimes short, sometimes reaching above half- 
way to the midrib, the pinna? truncate at the base, mostly sessile, 
the lower ones gradually smaller and more distant. Veins pinnate 
in each lobe and prominent, the branches or veinlets of adjoining 
lobes united in a vein tending to the sinus. Sori usually in a row 
about half way between the midrib of the lobe and the margin. 
Indusium orbicular-reniform, often disappearing early. Common 
throughout Qaeensland and N. S. Wales in various situations. 
Var. didymosorus. Sori one or two to each lobe and only at 
the junction of the lowest veinlets of adjoining lobes. Rockingham 
Bay, Queensland. 
Var. truncatum. This seems only to differ from the typical 
form in size, on the Tweed River ; it is said to attain the height of 
seven to eight feet, with pinnje eight inches or more long the lobes 
at times truncate. Duck Creek, Richmond and Tweed Rivers, N. 
S. Wales. 
A. confluens, Metten. Rhizome thick, scaly, erect. Fronds 
one to three feet long, deeply pinnatifid, pinnate usually at the base, 
or the frond somewhat tripartite. Stipes very dark. Segments 
lanceolate, often numerous, the upper ones two to six inches long, 
pinnately toothed or lobed, confluent on a broadly winged rhachis, 
the intermediate ones six to ten inches long, deeply pinnatifid and 
decurrent on the rhachis, the lowest pair quite free at the base, 
pinnatifid with long lanceolate lobes, of which the outer ones are 
again pinnatifid, all membranous. Veins copiously netted. Sori 
scattered, either on short veinlets free in the areoles or on the 
anastomosing veinlets. Indusium when perfect rather large, 
orbicular, peltate or on the same frond attached by a deep sinus. 
Found in most of the scrubs of tropical Queensland. 
A aculeatum, Sw. Lady fern. Rhizome short and thick, 
suberect. Fronds one to two feet high, twice pinnate, sometimes 
proliferous, the lower part of the stipes and the whole frond when 
young very shaggy with dark brown scarious scales mixed with 
hair-like ones. Primary pinnae lanceolate in outline, one and a 
half to four inches long, the lower ones decreasing in length ; 
pinnules ovate-lanceolate, curved, three to six lines long, prickly- 
toothed, with a prominent angle or lobe on the upper or inner side. 
Veins forked, diverging from the costule. Sori usually six to eight 
on each pinnule. Met with in Southern Queensland ; many places 
in N. S. Wales ; from Portland and the Grampians to Gippsland 
in Victoria ; and abundant in T.asiftania. 
