384 



THE BOOK OF CHOICE FERNS. 



are three times divided nearly to the rachis, which is only very slightly 

 winged at the extremity. The leafits are again divided into hair-like segments, 

 which are of a membranous texture and have a central vein only. — Hooker 

 and Greville, Icones Filicum, t. 199. Nicholson, Dictionary of Gardening, iv., 

 p. 82. Lowe, New and Bare Ferns, t. 67b. 



T. trichophyllum — trich-oph-yl'-lum (having hair-like fronds), Moore. 



This is a very finely-divided species, native of Borneo and New Caledonia. 

 Its oblong fronds, 2in. to 4in. long and lin. to l£in. broad, are borne on 

 cylindrical stalks of a wiry nature, lin. to 2in. long, and produced from 

 a densely -tufted rootstock. The rachis (stalk of the leafy portion) is stiff and 

 cylindrical throughout. The leaflets much overlap each other, and their leafits 

 are copiously cleft into bristle-like segments ^in. to Jin. long and spreading 

 in all directions. The abundant spore masses are placed near the base of the 

 pinnules (leafits) on the upper side. T. Mo'rierii is another name for this 

 species. — Moore, Gardeners' 1 Chronicle, 1862, p. 45. Nicholson, Dictionary of 

 Gardening, iv., p. 82. 



T. Yenosum — ve-no'-sum (veined), R. Brown. 



A distinct and pretty species, of small dimensions, native of Australia, 

 Tasmania, and New Zealand, where it is invariably found growing on trunks 

 of trees and frequently of Tree Ferns, which are densely clothed with it. The 

 thread-like rhizome may attach itself to a piece of stone, but it much prefers 

 rambling among the roots of a Tree Fern. The fronds, of a grass-green colour 

 and very transparent, are seldom more than 3in. long under cultivation, 

 although in their native habitats they reach nearly twice that size ; they are 

 distinctly pinnate, with distant leaflets, which are sometimes pinnatifid, although 

 usually simple, narrow, and toothed. — Hooker arid Greville, Icones Filicum, 

 t. 78. Nicholson, Dictionary of Gardening, iv., p. 82. Lowe, Ferns British 

 and Exotic, viii., t. 9b. 



T. Yieillardi — Vieil-lard'-i (Vieillard's). Synonymous with T. pyxidiferum. 



The Trichomanes above described represent only a portion of the species 

 at present known in culture and in herbaria, for in the second edition of 

 Hooker and Baker's " Synopsis Filicum " (published in 1873) no less than 



