28 
THE FERN WORLD OF AUSTRALIA. 
scarcely exserted. Found closely clothing the stems of trees in the 
dense scruBs of the Trinity Bay range. 
T. vitiense, Baker. Rhizome filiform, growth similar to last. 
Fronds shortly stipitate, oblong or line-ar-cuneate, entire or lobed, 
one midrib only, no lateral yeins four to six lines long. Sori 
terminal. Indusium tubular embedded in the margin of the frond 
or scarcely exserted, mouth entire slightly dilated. Receptacle 
shortly exserted. Found closely adhering to the bark of trees in 
dense scrubs throughout Queensland. 
T. yandinense, Bail. Rhizome filiform densely ■ and intricately 
matted, clothed more or less with ferruginous hairs. Fronds shortly 
stipitate, ovate to cuneate, the margins even or repand (slightly 
uneven) sometimes the apex slightly lobed, four to six lines long. 
Veins pinnately costseform, with regard to the main division which 
are prominent, between these are numerous striasform ones also a 
marginal or intramarginal one to which they all join. Sori terminal 
usually solitary at the apex of the perfectly ovate fronds, but on 
some two or three then giving a truncate appearance to tl-e frond. 
Indusium sunk in the frond, attenuated towards the base, the mouth 
broad spreading. Receptacle slightly exserted. Found on the logs 
and trunks of trees in the dense scrubs of Maroochie (Yandina). 
This beautiful new species forms a connecting link between T. 
vitiense and T. parvulum having somewhat the form of the former 
and the veins of the latter. 
• • T. parvulum, Poir. Rhizome filiform, creeping hairy. Fronds 
stipitate, stipes capillary equal in length to the lamina, usually 
flabellate but varying in general outline three to five lines in 
diameter, unequally palmatifid, some of the lobes reaching to near 
the base, all obtuse or emarginate veins external, in the live plant 
often of a dark color. Sori terminal. Indusium large for the 
plant, oblong, tubular spreading at the mouth. Receptacle included 
or shortly exserted. Found covering the damp rocks, in many 
parts of Queensland, usually where the scrub is dense as Enoggera 
Creek near Brisbane, Maroochie, Gympie Road, also in the tropical 
scrubs, 
T. digitatum, Sw. Rhizome filiform creeping hairy. Fronds 
on a rather long capillary stipes, quarter to half inch long, deeply 
and unequally divided into three to six broadly linear obtuse entire 
or notched lobes, bordered by a few small teeth. Indusia broader 
than in most species, but embedded in the apex of the lobes, with a 
very short open entire border. Found in Illawarra, N. S. Wales. 
T. venosum, R. Br. Rhizome very slender creeping, woolly-scaly. 
Fronds of the most delicate texture on capillary stipites, two to four 
inches or even more long pinnate. Pinnules linear or lanceolate, 
mostly half to one inch long, toothed or with a few short unequal 
lobes near the base, the veinlets of each pinnule pinnate, with simple 
or forked branches, the midrib flexuose. Indusium embedded in a 
short lobe near the base of the pinnule on the inner side, oblpng, 
with a short spreading entire border. Often found ori the trunks of 
