Pinna of mature Frond, under side. 



ASPIDIUM DELTOIDEUM. 



SWAHTZ. 



PLATE XI.I. 



Lastrea deltoidea, Mooee. 



Aspidium— Shield Fern. Beltoideum—DdtoiAiA. 



In the Section Lastrea of Authors. 



A SINGULAR-LOOKING Fern, as yet rare in cultivation. 



An evergreen stove species. 



i^ative of the West Indies, and imported from Jamaica. 



The fronds, which are stiiF, are erect, smooth, thickish- 

 textured, and pinnate; the pinate on the lower half of the 

 frond are very small and deltoidal, descending, and making 

 the lower half of the frond remarkably narrow; the pinnae 

 on the upper half of the frond very large in proportion to 

 those below, ascending, profoundly -pinnatifid, and narrowing 

 to the apex. Pinnee at the base, and also upper portion of 

 the frond, rounded at the apex, the large pinnaj pointed. 

 The largest pinnae four inches in length, below where deltoid 

 only half an inch. Stem very hirsute; base scaly. 



Rhizoma very slow creeping, (decumbent,) and stout. 



Veins forked. 



