Hostmanniane. N. O. Filices. 
TAB. DCXLVI. 
Hemitevia Hostmannti. Hook. 
Stipite ad basin aculeato rachique squamosis, frondibus bipin- 
natis, pinnulis oblongis valde obtusis sessilibus ad basin 
cuneatis membranaceis pinnatifidis v. ad medium lobatis 
superioribus coadunatis decurrentibus, venulis simplicibus 
liberis, soris remotis, ad medium venule inferioris inter sinum 
v.rachin. Hook. Sp. Fil. v.1, p. 31. 
Has. Dutch Guiana. Hostmann, n. 64. 
A very distinct and well-marked species, of which I possess a 
frond about 4 feet long, including the stipes, which measures a 
foot and a half, rich mahogany brown, on one side densely clothed 
with long, dark brown, glossy scales, on the other muricated 
with short aculei. Pinne remote, the largest a foot long, sessile. 
Pinnules pinnatifido-lobate, of a thin and flaccid texture, veins 
of each lobe pinnated, only the lowest pair of veinlets bearing 
each near the middle a solitary sorus ; so that on the pinnules 
_ the sori are distant, and form a line remote from the margin, 
half-way between the sinus and rachis. The upper pinnules are 
confluent, at first simply combined by a decurrent wing, then 
united into a lobed margin, and terminating in a blunt, entire 
acumen. The rachis of the pinne is rough and somewhat 
scaly, that of the pinnules slightly strigoso-hispid. 
Fig. 1. Fertile portion of pinnule. f. 2. Sorus, jf, 3. Invo- 
_ lucre :—magnified, : 
