41 
oblong, glabrous, 2 to 4 lines long, eniarginate at base; dor- 
sal and intermediate ribs acute and prominent, often somewhat 
winged; lateral wings thin, broader than body: oil-tubes mostly 
solitary in the intervals (sometimes 2 or 8), 2 to 6 on the commis- 
sural side: seed-face plane. (Fig- 15.) 
Along the Alleghanies, from Pennsylvania to North Carolina. FI. Au- 
gust. 
/ 
^ * Oil-tubes three to many in the intervals : eastern 
species. v 
14. A. hirsuta Muhl. Cat. 2 ed. 80. Tomentose above, 2 
to 5 feet high: leaves twice or thrice pinnately or ternately divided 
(the uppermost mostly reduced to large inflated petioles); leaflets 
thickish, lanceolate to oblong (half to about an inch broad), ser- 
rate: umbel equally mmy-rayed, with no involucre, and involucels 
of linear bractlets; rays 1 to 2 inches long; pedicels 2 lines long: 
fruit nearly round, pubescent, 2 lines in diameter; dorsal and inter- 
mediate ribs prominent; lateral wings thin, as broad as body: oil- 
tubes 8 to 6 in the intervals (sometimes 1 or 2), 6 to 10 on the 
commissural side: seed-face plane. (Fig* 16.) Archangelica 
hirsuta Torr. & Gray, i. 622. 
Dry ground, Canada to Florida, and westward to Minnesota and Ten- 
nessee. 
15. A. dentata C. & R. Bot. Gazette, xii. 61. Slender, 
glabrous, 1 to 8 feet high : leaves ternate, with long slender petioles 
and few leaflets, which are small ( ^ to 1 inch long), lanceolate, 
coarsely toothed or lobed: umbel (slightly pubescent) equally 5 
to 10- rayed, with no involucre, and involucels of subulate bractlets; 
rays about an inch long; pedicels 8 to 4 lines long: fruit broadly 
oblong, glabrous or pubescent, Ij^ to 2^ lines long; dorsal and 
intermediate ribs more or less prominent; lateral wings thin, as 
broad as body: oil-tubes about 20 and continuous, 8 of them on 
the commissural side: seed-face plane. (Fig. 17.) — Archangelica 
dentata Chapman, Torr. & Gray, FI. i. 622. 
Dry pine barrens, Florida. FI. July to November. 
16. A. atropurpurea L. Spec. 251. Very stout, smooth, 
with dark purple stem, 4 to 6 feet high: leaves ternate then pin- 
nate; leaflets ovate to lanceolate (1 to 8 inches long), sharply cut 
mucronate-serrate: umbel (glabrous) equally 15 to 25-rayed, with 
