BOTRYCHIUM VIRGINIANUM, Swartz. 
Virginian Grape- Fern. 
Botrychium Virginianum : — Plant sparsely hairy, usually 
from eight inches to two feet high ; sterile segment membra- 
naceous, sessile near the middle of the plant, broadly deltoid, 
ternate ; the primary divisions stalked, once to three times 
pinnatifid ; secondary divisions ovate-lanceolate, ultimate divis- 
ions toothed at the ends ; fertile segment long - stalked, twice 
to four times pinnate ; base of stalk opening by a longitudinal 
chink, and disclosing the pilose bud. 
Botrychium Virginianum, Swartz, in Schraders Journal, ii. (1800), p. iii ; 
Syn. Fil., p. 171. — Schkuhr, Krypt. Gew., p. 157, t. 156. — 
Ruprecht, DIst. Crypt. Vase., in Imp. Ross., p. 33. — Milde, 
Fil. Eur. et Atl., p. 207; Botry. Monogr., p. 177. — Miquel, 
Prolus. FI. Jap., in Ann. Mus. Bot. Lugd.-Bat., iii., p. 182. — 
Hooker & Baker, Syn. Fil., p. 448, excl. B. lanuginosum. — 
Davenport, in Bull. Torr. Club, vi., p. 197. — Williamson, Ferns 
of Kentucky, p. 14 1, t. Ivi. 
Botrychium Virginicum, Willdenow, Sp. PI., v., p. 64. — Pursh, FI. 
Am. Sept., ii., p. 656. — Wahlenberg, “ FI. Suec., ii., iii., 
p. 681.” — Torrey, FI. New York, ii., p. 506. — Presl, Suppl., 
p. 46. — Gig\v, Manual, ed. i., p. 635, etc. — Brackenridge, Fil. 
U. S. Expl. Exped., p. 317. — Lawson, in Canad. Nat. (1864), 
p. 292. — Eournier, pi. Mex. Crypt., p. 140. 
