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FERN S OF NORTH AMERICA.
P l a t e X X X V I.— F ig . 1 - 3 .
A S P L EN IU M T R ICHOM AN ES , L i n n æ u s .
Maiden h air -Spleenwo r t.
A s p l e n i u m T r i c h o m a n e s : — Root-stock short, the slender
blackish scales having a strong midnerve; stalks densely clustered,
one to five inches long, nearly black, shining' and very
narrowly margined, 'as is the rachis, which persists after the
pinnæ are fallen; fronds two to eight inches long, or even
longer, narrowly linear in outline, rather rigid, evergreen, pinnate;
pinnæ numerous, very short-stalked, roundish-oval or oval-
oblong from an obtusely cuneate or truncate base; the margin
entire or crenulate, or rarely incised; midvein nearly central;
veins few, oblique, usually once forked ; sori oblong, commonly
from three to six each side of the midvein, but in large forms
more numerous; indusia membranaceous, entire or obscurely
crenated, rarely toothed.
Asplenium Trichomanes, L in n æ u s , Herb.!; Sp. Pl., p. 1 5 4 0 (in part).—
H u d so n , "Flora Anglica, ed. i. ( 176 2 ), p. 38 5 ."— M ic h a u x , FI.
^ Bor.-Am., ii., p. 264.— S w a r t z , Syn. F il, p. 80.— S c h k u h r ,
Krypt. Gew., p. 6g, t. 74.— 'W i l l d e n o w , Sp. PL, v., p. 3 3 1 .—
T o r r e y , FI. New York, ii., p. 491. — R u p r e c h t , Distr. Crypt. Vase,
in Imp. Ross., p. 44. — G r a y , Manual.— N ew m a n , Hist. Brit. Ferns,
ed. iii., p. 249. — M o o r e , Nat. Pr. Brit. Ferns, t. x x x i x .— M e t t e n iu
s , Fil. Hort. Lips., p. 7 2; Asplenium, p. 13 8 .— H e u f l e r , Aspl.
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