THE FERN WORLD OF AUSTRALIA. 
eight pair denticulate but not ciliate, the lower ones about two lines 
long and from that tapering to about one line. Spore-cases ten to 
twelve pair. Found on damp rocks in the Blue Mountains, 
Illawarra and Port Jac'kson,' N. S, Wales. 
S. dichotoma, Swartz. Rhizome shortly creeping, fronds six 
to eighteen inches high, firm erect, channelled above divided 
dichotomously, flabelliform in general outline four to nine inches 
broad, the segments of barren frond somewhat flattened segments 
of fertile frond narrower and each ending in a crest of soriferous 
pinnules as in S. bifida but the whole smaller. This curious sedge- 
like fern is found on the sandy land near the coast throughout 
Queensland to Port Darwin ; at times it may be met with growing 
in the crevices of rocks further inland and might then be mistaken 
for Psilotum triquetrum Sw ; specimens liave also been gathered on 
the Blue Mountains and Parramatta, N. S. Wales. 
S. Forsteri, Spreng. F. v. Muell Fragm VIII 275. Rhizome 
short scaly. Fronds three to nine inches high, glossy, Stipes 
hght-colored channelled, the upper portion of frond dichotomously 
divided into four segments, which are rather broad for the size of 
the frond, glossy and taper to a neck like contraction at the apex 
thus giving a stipitate appearance to the fructification which is 
composed of from four to six hairy pinnules shorter than in S. 
dichotoma and placed digitato-pinnate not pectinato-pinnat e as in 
that species, spore-cases bi serial as in the other Australian species. 
The habitat of this species differs widely from that of the others it 
having only as yet been found in two places in Queensland, viz., 
Maroochie and Trinity Bay range, and in each of these places 
lound growing amongst the roots of Palm trees which are often 
some distance above the level of the ground. 
VI. — Angiopteris, Hoffmann. 
Rhizome, fleshy, subglobose, erect. Frond large, bi-pinnate, the 
stipes thick wdth two large auricles at the base. Spore-cases 
globular at first, laterally connected, afterwards free, without any 
ring, opening inwards in two valves, sessile in two close opposite 
rows forming an oblong sorus, these sori are placed side by side in 
a continuous row near the margin of the pinnules. No indusium. 
A. evecta, Hoffm. Rhizome, a subglobose mass of a few feet 
high and thick, emitting thick fleshy cord-like roots from its base. 
Fronds bi-pinnate, very broad, twelve or more feet long, stipes 
thick pubescent, swollen and articulated at the base above the two 
leathery auricles which remain attached to the rhizome, pinna3 the 
lowest the largest, also swollen at the base of rhachis pinnules four 
to eight inches long, half-inch to one and half broad, abruptly 
acummate, crenate serrate or at times entire, sessile or shortly stalked. 
Veins nearly parallel, diverging from the mid-rib entire or forked. 
Spore-cases four to six row^s in each sorus. Found in close gullies 
Rockingham Bay, Daintree River, Trinity Bay ranges, Fitzroy 
Island, &c. One of the most noble of tropical ferns. 
