80 OENAMENTAL FOLIAGE PLANTS. 



and nearly two inches broad, rosnlate, of a lively green, 

 terminating in a long stout dark coloured spine, the mar- 

 gfins also bearing large irregular hooked spines. Native 

 of Mexico. 



A. horrida Imvior. — This resembles the foregoing, but 

 has somewhat longer narrower leaves, with the marginal 

 spines less strongly developed, and of a paler colour. It 

 was introduced with A. horrida itself from Mexico. 



A. EJimibdldtiana. — Leaves erect, moderately stout, some 

 three or four feet long, broad in the centre, tapering at 

 each end : apex very acuminate, ending in a stout reddish 

 brown spine, and the margins armed with very minute 

 closely set ones of the same colour. It is a handsome 

 and distinct plant ; very desirable. Native of San Luis 

 Potosi. 



A. Iiystrix. — This species is evidently nearly allied to 

 A. ensiformis, the leaves are, however, somewhat pendulous 

 and semiterete, longer, narrower, thicker at the base, and 

 not so dense as in that plant; apex armed with a red 

 spine. Native of Mexico. 



A. Jacohiana. — ^This is a superb plant, with leaves 

 upwards of two feet in length, and some six inches in 

 breadth, thick and massive, and very much incurved at 

 the apex, blue green in colour, armed at the point with 

 a long stout terete spine, and at the edges with large flat 

 fiomewhat recurved ones. Native of Mexico. 



A. Jaequmiana. — ^This amongst grand and noble plants 

 is unequalled. It may be said to have somewhat the style 

 of A. americana, but is totally distinct. It produces more 

 leaves in a whorl than A. americana does, and as they are 

 not so thick at the base, they are consequently set much 

 closer together, in addition to which, fidly half of them 

 stand erect, which gives the plant a more noble aspect. 



