334 ORNAMENTAL FOLIAGE PLANTS. 



variety, differing from it in its longer and narrower leaves, 

 and in being far less channelled ; the spine at the apex is 

 long and sharp, not short and blunt, as in the species. 



Y. Be Smetiana. — A very distinct and elegant species. 

 The stem is slender ; the leaves much reflexed, narrow, 

 about twelve inches in length, and rather less than an 

 inch in breadth, dark green, glaucous, and suffused with 

 a rich metallic hue. This is an extremely rare species, 

 and totally distinct from any other plant at present in 

 cultivation. 



Y. Draoonis. — The stem of this species is stout at the 

 base. The leaves are closely set, eighteen inches in 

 length, and two inches broad, thick and fleshy, dark green 

 and ending in^ long thin unarmed point. A fine massive 

 ornamental species, one that will be a superb ornament to 

 the sub-tropical garden in the summer months. Native of 

 South America. 



Y. ensifolia. — Stem short and stout, leaves narrowly lan- 

 ceolate, from two to two and a half feet in length, armed 

 at the apex with a spine, and glaucous green in colour, the 

 ■edges being bordered with brown. Flowers globose-cam- 

 panulate creamy-white inside, but tinged without with red. 

 Native of Mexico. 



Y. filamentosa variegata. — This variety is of compact 

 Ihabit, and very ornamental in appearance. The leaves 

 are from twelve to eighteen inches in length, and about 

 ifcwo in width, dark green in the centre, bordered with 

 pure white, and clothed at the edges with long white 

 filaments. Native of North America. 



Y. Gcuatemalensis. — This is a fine greenhouse species, 

 forming a stem from five to six feet in height, the leaves 

 are lanceolate in shape, from two to three feet in length, 

 bright shining green in colour, the edges being rough, 



