324 
Choice Ferns for Amateurs. 
TRlCnOMANKS- conti7iued. 
T. brevisetum. 
Synonymous with T. radicans. 
T. Colensoi. 
This elegant, delicate-looking species, of a particularly 
slender nature, was first discovered in the interior of the 
Northern Island, New Zealand, by the Rev. W. Colenso. 
Its wide-creeping, slender rhizome ie naked, and its oblong- 
epear-shaped fronds, 2in. to 4in. long, are borne on naked 
stalks lin. long; they are fully pinnate, with distant, stalked 
leaflets cut down quite to the stalks, and very narrow seg- 
ments. This species grows best on porous stone. 
T. dissectum. 
A garden name for T. affmuatuin, 
T. exsectum. 
A lovely species, native of Juan Fernandez and Southern 
Chili. The fronds, 6in. to 12in. long, produced from a wide- 
creeping, slender rhizome, are extremely delicate and mem- 
branous, and resemble thin, flat, much-branched, green 
sea-weed. Their segments are narrow, smooth, either 
simple or forked, and blunt. The plant thrives equally well 
on hard wood or stone. 
T. parvulum. 
This small-growing species, native of Japan, China, 
Java, Madagascar, &c., is a remarkably pretty plant, of 
easy culture either on a fragment of Tree-Fern or on a 
piece of fibrous peat. Its very attractive little fronds, pro- 
duced from wide-creeping, thread-like, interlaced rhizomes, 
and borne on very short, slender stalks, are round or nearly 
so in general outline, wedge-shaped at the base about ^in. 
each way, and cut like a fan about half-way down from the 
outer edge in the direction of the base into narrow, 
irregular segments (Fig. 123, reduced from Col. Beddome's 
"Ferns of British India,'' by the kind permission of the 
author). They are of a very transparent nature. 
T. radicans. 
This species, extensively known under the popular 
name of Killarney Fern, and also called T. brevisetum, 
is undoubtedly the most beautiful of all the Filmy Ferns. 
It is a native of the Azores, Spain, Teneriffe, the Canary 
Isles, Madeira, Mexico, New Granada, Venezuela, Brazil, 
the Sandwich Islands, &c. The fronds are produced from 
a wide-creeping rhizome of a hairy nature, which has a 
great predilection for stone, clinging thereto with great 
tenacity. They are borne on stalks 2in. to 6in. long, naked 
or nearly so, and sometimes winged in their upper part. 
