61 
PLEOPELTIS ANGUSTA. 
Narrow-leaved scaly-Fern. 
CRYPTOGAMIA FILICES.—Nar. Onp. FILICES, Div. Gynatx, Br. 
Gen. Cuar.—Sori subrotundi, dorsales. Involucra plura in quolibet soro, 
orbicularia, peltata.x—Kunth, in Humb. et Bonpl. Nov. Gen. 
Pleopeltis angusta; frondibus longe stipitatis squamulosis profunde pin- 
natifidis, segmentis paucis lineari-lanceolatis nunc dichotomies margi- 
nibus subrepandis. 
Pleopeltis angusta, Humb. et Kunth, in Nov. Gen. p. 9. tab. 1 —Win. Sp. 
Pl. v. 5. p. 211. 
Polypodium pleopeltifolium, Rapo1, Sin Flic. ‘Phasil p: 8. 
Roots numerous, brown, thrown out from a creeping, cylindrical, scaly caudex. 
Pr coer 
Stipes from 2 to 5 inches in length, glabrous. Fronds 3 or 4 inches high, 
deeply cut into about 5 long, narrow, linear-lanceolate, at the margins 
somewhat repand, rather obtuse, segments, the upper segment gene- 
rally dichotomous. These have, both on their upper and under sides, 
numerous small, scattered, ovate, orbicular, peltate scales, dark in the 
centre, pale at the margins, and rather deeply cut, reticulated, membra~ 
naceous. The rachis or midrib is zig-zag, a sae especially be- 
neath. 
_ The under sides of the segments, from the extre to the base, have, on 
each side of the midrib, a row of closely placed, roundish-oval, promi« 
nent, brown sori or spots of fructification, of which I have not seen the invo- 
jucres ; but which latter are figured and described by HUMBOLDT, as si< 
milar to what I have represented as one of the scales at Fig. 3. “ Indus 
sia plura in quolibet soro, peltata, margine fimbriata, fusca.” : then. 
Capsules very numerous, brown, as well as the ieee 
If this be not a Pleopeltis, then is the genus not founded 
on Nature, for between the plant here figured, and the one re- 
presented under the same name (P. angusta), in HuMBoLDT’s 
grand work, there is no difference whatever, except in the ab- 
sence of the involucres,—a circumstance which, I think, may 
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