39 
8. A. Brewcri Gray, Proc. Am. Acad, vii.348. Glabrous or 
somewhat puberulent (especially in the infloi escence), 3 to 4 feet 
high: leaves ternate or quinate then pinnate; leaflets lanceolate or 
oblong-lanceolate, acuminate, 2 to 5 inches long, sharply seiiate 
with cuspidate teeth; the lower sometimes looed at base, peduncles 
often wdth dilated bracts: umbel many-ra}ed, with neither invo- 
lucre nor involucels (or with a few deciduous biactlets^, lays 2 
to 3 inches long; pedicels 2 to 4 lines long: sty lopodium conical, 
with long style: fruit oblong, pubescent or becoming glabrous, 
4 to 6 lines long, and 2 to 3 lines broad; dorsal and intermediate 
ribs more or less prominent; lateral wings naiiow and as thick as 
the flattened body : oil-tubes 1 or 2 in the intervals, 2 to 4 on the 
commissural side: seed deeply sulcate beneath the oil-tubes; the 
face more or less concave, with sometimes a cential longitudinal 
ridge. (Fig'- 11-) 
California, in the Sierra Nevada, from Plumas county (Mrs. R- M. Aus- 
tin), and Nevada county (Jones 2584), to the Upper Stanislaus (Hooker & 
(?my, in 1877), and Ebbett’s Pass and the Big Tree road (Bolander, Tor- 
rey, Brewer)-, also N. W. Nevada (Watson). 
9. A. leporina Watson, Proc. Am. Acad. xii. 252. Tall 
and stout, glabrous: leaves bipinnate; leaflets linear-lanceolate to 
lanceolate, acuminate, coarsely toothed to entire, 1 to 3 inches 
long: umbel vei'y unequally 10 to 25-rayed, with neither invo- 
lucre nor involucels (orwdth a few deciduous bractlets); rays some- 
what scabrous, ^ to 3 inches long; pedicels thick, 2 to 3 lines long: 
fruit glabrous, about 1^ lines long; dorsal and intermediate ribs 
prominent; lateral wings narrower than body: oil-tubes solitary in 
the intervals, or the lateral in pairs, 2 or 4 on the commissural 
side: seed-face plane. (Fig. 12.) 
S. Utah (Ward, Palmer 183). 
10. A. lineariloba Gray, Proc. Am. Acad. vii. 347. Stout, 
glabrous, 2 to 3 feet high: leaves twice or thrice quinate; leaflets 
linear, 1 to 2 inches long, cuspidately acuminate, entire or the 
lower ones 3-parted with thedecurrent somestimes coarsely toothed 
lobes divaricate: umbels with neither involucre nor involucels; 
rays 1 to 2 inches long: fruit oval-oblong, glabrous, 4 lines long, 
2 lines broad ; dorsal and intermediate ribs filiform; lateral wings 
thickish, a little narrower than the body: oil-tubes solitary in the 
I 
