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WOODSIA HYPERBOREA,R.Br. WOODSIAILVENSIS,R.Br WOODSIA GLABELLA, R.Br
F E R N S O F NORTH AM E R IC A . I 0 7
P l a t e LX. — F ig . 1 - 4 .
WOODSIA I-IY P ER BO R EA , R. B r o w n .
Northern Woodsia.
W o o d s i a h y p e r b o r e a ; — Root-stocks ascending, tufted;
stalks crowded, articulated and chaffy near the base, sparingly
chaffy upwards, as is the rachis, castaneous and shining when
dried; fronds two to six inches long, oblong-lanceolate, nearly
smooth, or sparingly paleaceous-hirsute, pinnate; pinnæ three
to six lines long, triangular-ovate, rounded at the apex, pinnately
lobed into a few obtuse rounded nearly entire flattened
lobes; sori sub-marginal, distinct; involucre saucer-like, deeply
cleft into long incurved filiform rays.
Woodsia hyperborea, R. B rown, in Trans. Linn. Soc., xi., p. 17 3 ; Verm.
Bot. Schriften, ii., 681. — H o o k e r , FI. Am.-Bor., ii., p. 259;
Sp. Fil., i., p. 63; Brit. Ferns, t. 7, — H o o k e r & B a k e r , Syn.
F i l , p. 46.— P r in g l e , in Amer. Nat., Dec. 1876; and in Bull, of
Torrey Botan. Club, vi., p. 273.
Woodsia alpina, S. F. G r a y , “ Nat. Arrangement of Brit. PL, ii., p.
17 .” — N ew m an , Hist. Brit. Ferns, ed. iii., p. 79. — M o o r e ,
Nat. Pr. Brit. Ferns, t. xlvii., B. — L awson, in Canad. Na t, i.,
p. 2 8 g . — E a to n , in Canad. Nat., ii., p. 89.
Woodsia Ilvensis, var., B en th am , 111, Handbook of the Brit. Flora, ii.,
p. 1060.
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