THE PERN WORLD OF AUSTRALIA. 
61 
A. aristatum, Sw. Rhizome long, creeping, crinite with long 
subulate ferruginous scales. Fronds one to two feet high, broadly 
ovate-triangular in outline, twice pinnate on the lower pinnaa, again 
pinnate at the base, thin, firm, of a light glossy green color, the 
stipes scaly-hairy at the base. Pinnules or lobes very obliquely 
oblong or lanceolate, half to one inch long, narrowed or cuneate at 
the base, bordered at the end by a few teeth ending in bristle-like 
points. Veins forked, diverging from the costule. Sari small, not 
numerous, loosely arranged in two rows. Indusium small, orbicular- 
reniforra. Enoggera, near Brisbane ; Port Denison and Rockingham 
Bay, in Queensland ; New England, Hastings and Tweed Rivers, 
and Illawarra, in N. S. Wales. 
A. capense, Willd. Rhizome creeping. Fronds from under 
one foot to two feet high, broad, rigid, the stipes and rhachis scaly, 
mostly bipinnate but the smaller ones occasionally simply pinnate. 
Pinnae coriaceous, lanceolate, toothed or pinnatifid, with reticulate 
veins concealed in the thick tissue. Sori often large, one to each 
tooth or lobe. Indusium peltate and rigid, fallen mostly from old 
sori. A common fern in N. 8. Wales, Victoria and Tasmania. 
Var. Moorei. Lord Howe's Island. Fronds two to three feet 
long, rhachis very shaggy with large light brown scales. 
A. deoompositum, Spreng. Rhizome shortly creeping. Fronds 
glabrous or the rhachis and primary nerves pubescent or scaly ; 
very variable in size and outline, usually from one to two feet high, 
the stipes often long, pinnate with deeply pinnatifid pinnaa, the 
larger ones thrice pinnate. Primary and secondary pinnae ending 
in a narrow pinnatifid apex. Pinnules or segments lanceolate, two 
to three fines broad, pinnately toothed or lobed, the teeth acute or 
mucronate and the margin of the lobes usually nerve-like. Veins 
pinnate more or less divided according to the divisions of the 
pinnules. Sori usually one or two to each principal lobe not very 
far from the costule. Indusium orbicular-reniform often concealed 
as the sorus enlarges and sometimes perhaps deficient from the first. 
Very common in Queensland, N. S. Wales, Victoria and Tasmania, 
also at Penola in S. Australia. 
A. acuminatum, T. Moore. Rhizome shortly creeping. 
Fronds ovate-lanceolate, in outline bipinnate, in the lower parts six 
to twelve inches long, on slender stipites, which are nearly gla- 
brous, while the rhachis and costules are usually hispid. Veins 
pinnate ending in marginal teeth. Pinnules oblong, obtuse, but 
the end of frond and lower pinnge, elongated and either lobed or 
toothed. Sori near the midrib. Indusium large somewhat firm in 
texture, orbicular-reniform. My only specimens of this beautiful 
and distinct fern are from near Sale, Gippsland, Victoria, but it is 
likely to be met with in many other parts of Southern Australia. 
A. tenerum, Spreng. Rhizome shortly creeping, thick, often a 
good deal branched. Fronds somewhat coriaceous glabrous and 
glossy above, but the stipes, rhachis, and costules hairy, with a few 
scattered dark brown scales, bi-tripinnate in general outline resem- 
