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FERNS OF NORTH AMERICA.
P l a t e s X X and X X '^ .
BO T R YCH IUM T E R N A T UM , S w a k t z .
T e rn a te G ra p e -F e rn .
B o t r y c h i u m t e r n a t u m : — Plant fleshy, sparsely hairy or
nearly smooth, usually from four to twelve inches high ; sterile
segment long-pctioled from near the base of the plant, broadly
deltoid, ternate, variously decompound ; primary, secondary, and
even tertiary divisions stalked ; ultimate divisions from round-
ish-reniform to obliquely ovate or ovate-lanccolate, crenulate or
toothed or incised ; fertile segment twice to four times pinnate,
usually much taller than the sterile ; bud pilose.
Botrychium ternatum, Sw a r tz , in Schraders Journal, i8oo, ii., p. m ; Syn.
Fii., p. 172. — W il ld en ow , Sp. PL, v., p. 63. — K u n z e , Ptcrido-
graphia Japónica, in Bot. Zeit., vi. (184S), p. 4 9 1 ; Die Farrn-
krauter, ii., p. 5 1, t. 12 1. — M e t t e n iu s , Prolus. I'l. Japon., ¡n Ann.
Mus. Bot. Lugd.-Batav., üL, p. 182. — M il d e , Fil. Eur. et Atl.,
p. 199 ; Botr. Monogr., p. 146, t. vii., figs. 7, 13 , 14, 18, 19, viii.,
figs- 3. 4. 5- 7. 8, 12, ix., figs. 5, 23-29 (various details of form
and structure). — H o o k e r & B a k e r , Syn. FiL, p. 448.— D a v en po
r t , in Torrey Club Bulk, vi., p. 196.
Osmunda teníala, T h u n b e r g , FI. Japon., p. 3 2 9 , t. 3 2 ( 1 7 8 4 ) .
.-U'* To one form or another of this species are to be referred the
following synonymes : —
Botrypus lunaroides, M ic h a u x , FL Bor. Am., ii., p . 2 7 4 .
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