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Plate LXXl
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W O O D S I A OR EO A N A .E a t o n . W O O D S A O S G OP ULI NA. Eaton.
Vv’Ü O D S I A OBTU S A . Torrey.
F E R N S O F NORTH AM E R IC A .
P l a t e LX X I. F ig . 1 - 4 .
WOODSIA O REGANA , D. C. E a to n .
Oregon Woodsia.
W oodsia Oreg an a :— R oot-stocks short, creeping, chaffy,
forming large tufts or patches; stalks two to four inches high,
not jointed, bright-ferruginous near the base, paler and stramineous
upwards; fronds lanceolate-oblong, four to six inches
long, pinnate, smooth, the fertile ones ta lle st; pinnæ triangular-
oblong, obtuse or acutish, pinnatifid; segments oblong or
ovate, obtuse, toothed or crenate, the teeth often reflexed and
covering the submarginal sori; indusium very minute, divided
almost to the centre into a few beaded hairs.
Woodsia Oregana, E .s to n , in Canad. Naturalist, ii., p. 90; Gray’s Manual,
ed. V., p. 669; Ferns of the South-West, p. 337.- „ B a k e r ,
Syn. Fil., ed. it, p. 48.— D a v e n p o r t , Catal., p. 34.— W i l l iam -
SON, Fern-Etchings, t. li.
Woodsia oMusa, v a r . L y a llii, H o o k e r , Syn. F i l ., ed . i., p. 48.
I-Iab.— Growing in dense patches in the crevices of rocks, often
where it is much exposed to the sun ; from Oregon and British Columbia
eastward to Lake Winnipeg and the Keweenaw Peninsula of
Michigan, and southward to Wyoming, Utah, Colorado and Arizona.
It has recently been found in California by Mr. J. C. L em m o n , forming
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