FERNS OF NORTH AMERICA.
P l a t e VII.
A S P ID IUM N O V E BO R A C EN SE , S w a r t z .
N e w -Y o r k Sh ie ld -F e rn .
A s p id iu m N o v e b o r a c e n s e : — Root-stock elongated, creeping,
cord-like ; stalks about one-third the length of the fronds, slender,
at first sparingly chaffy, soon naked ; fronds one to two feet
long, thin-membranaceous, minutely ciliate and finely hairy along
the midribs and veins, especially beneath, lanceolate in outline,
with an acuminate apex and a gradually narrowed base, pinnate ;
pinnæ sessile, lanceolate, acuminate, deeply pinnatifid, the lower
four to six pairs gradually shorter and deflexed, the lowest mere
auricles ; lobes crowded, flat, oblong, obtuse, entire, basal ones
occasionally enlarged and toothed ; veins free, pinnate from the
mid-vein, straight, simple, rarely a few of them forked ; sori
minute, placed near the margin ; indusium reniform, glandular,
and sometimes with scattered hairs, delicate and withering as the
fruit ripens.
Aspidium Noveboracense, S w a r t z , Syn. Fil., p. 55. — S c h k u h r , Krypt. Gew.,
p. 47, t. 46. — W il ld en ow , Sp. P I, v., p. 248. — K u n z e , in SilH-
man’s Journ., 1848, vi., p. 83. — M e t t e n iu s , iiber Aspidium, p. 78.
— T o r r e y , Flora of New York, ii., p. 497 .—- G r a y , Manual, ed. ii.,
p. 597, et ed. omn. seq. — E aton, in Chapman’s Flora of the
Southern United States, p. 594.
Polypodium Noveboracense, L in n æ u s , Sp. Pl., p. 1552.
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