568 FILICES. : { Aspidium. 
1, A. Hillebrandi, pail in Seem. Fl. Vit. p. 358. — Caudex stout, 
erect, 6—12' high. 4—8'‘, light brown, glossy, densely clothed 
Sisitasticlk with nbs sea to lanceolate, retrorsely laciniate and dentate, 
pale brown or reddish, diaphanous scales, which when fallen leave a sharp 
ridge or ag ercle. Frond lanceolate, narrowing at the base, 11/2—2 ft. 
g, 3—6‘ broad, coriaceous, shining above, dark green, olivaceous when 
dry, bipinnate, with pinnatifid apex; the rhachis paleaceous, ribs and 
veins fibrillose underneath. Pinnae 20—40 on a side, subsessile, erecto- 
patent, lanceolate, falcate, acute, the longest 3‘, the upper basal pinnule 
parallel to the rhachis and little exceeding its oe Outer segments 
obovate, with cuneate base, entire, shortly toothed at the apex, the inner 
pinnules shortly stipitate, ovate-rhomboidal, wa 6" xX 2—3”", with an 
entire or subauriculate rounded upper base, muticous or with a cartila- 
ginous toothlet at the apex and auricle aie Veins hidden. Sori 7— 
to a pinnule, halfway between midrib and edge, dorsal on the anterior 
fork-branch or almost terminal on a short lateral branch of the same. 
Invol. peltate, entire, stiff, permanent, upturned when dry, rather small. 
ar.— Pinnules larger, 6—10"  3—4”, truncate, with several oe but 
not awned crenatures on each side. — A. icant gs Mann, 
~ var. — Frond less stiff, chartaceous. Pinn —5‘ long. Pnedias 
as in 8, but the upper basal one much the pate: see deeply lobed, all 
the crenatures and lobules blunt, excepting one short tooth at the apex 
uricle. Fib. vas. fasci 
uthern slope of Haleakala, Gai Kohala range and Mauna Kea, Hawaii! in forests 
000 ft. - An 
at altitudes of 3000— ear of A. aculeatum, the fo! corres 
to its var. lobatum, Kze., a angulare, , 0 eatum, Sw. It differs from 
all the genuine f of that variable s s in the absence of awns, and ts simplest 
8 a in the en nts or pinnules. The frond is thicker than that of any 
form of A. aceon in ee dried state the sori form prominences on the back of the 
pinnae. Nat. na «Papao 
um, Sw. var. ca i, phd — A weak and low fern 
with a very short caudex. Stipes i 2—7‘ long, paleaceous. 
Seales concolorous, pale, ery ne pee retrorsely dentate 
above, intermixed with soft denticulate fibrils which closely invest the 
rhachides and ona Frond linear-lanceolate, narrowing below, occa- 
sionally very small, 4‘ >< 1‘, in the larger forms 9—15‘ > 2!/2—4!/2’, 
herbaceous, dull, swale on both faces, bipinnate. Pinnae 20—28 on a side, 
lanceolate, spreading, */4—2'/4‘ long, the shorter ones rather obtuse, the upper 
e not much longer than its neighbor. Pinnules obliquely 
ovate-lanceolate, with the subtruncate upper base rounded and receding 
e rhachis, deeply cut into ovate lobules, each with 1—3 sharp 
awns. Sori iieiean-o osta and margin, 5—-9 to a pinnule, more than one 
to the basal lobe, at last covering the whole under side. Invol. thin, 
peltate, denticulate, fugacious. — Mann, Enum. no. 593. — Polystichum 
