89 



8. A. Breweri Gray, Proc. Am. Acad. vii. 3-1:8. Glabrous or 

 somewhat puberulent (especially in the inflorescence), 3 to 4 feet 

 high: leaves ternate or quinate then pinnate; leaflets lanceolate or 

 oblong-lanceolate, acuminate, 2 to 5 inches long, sharply serrate 

 with cuspidate teeth; the lower sometimes lobed at base: peduncles 

 often with dilated bracts: umbel many-ra}cd, with neither invo- 

 lucre nor involucels (or with a few deciduous bractlets); rays 2 

 to 3 inches long; pedicels 2 to 4 lines long: stylopodiuin conical, 

 with long style: fruit oblong, pubescent or becoming glabrous, 

 4 to lines long, and 2 to 3 lines broad; dorsal and intermediate 

 ribs more or less prominent; lateral wings narrow and as thick as 

 the flattened body: oil-tubes 1 or 2 in the intervals, 2 to 4 on the 

 commissural side: seed deeply sulcatc bcicath the oil-tubes; the 

 face more or less concave, with sometimes a central longitudinal 

 ridge. (Fig. 11.) 



California, in the Sierra Nevada, from Plumas county (J/r«. R. M. Auh- 

 lin), and Nevada county (Jone-n 2r)84), to the Upper Stanislaus {Hooker A- 

 C?m!/, in 1877), and Ebbetfs Pass and the Big Tree road (i?o/«;i(/e»-. Tor- 

 rey, Brewer); also N. W. Nevada ( ir«/.so;n. 



It. A. leporina Watson, Proc. Am. Acad. xii. 2r)2. Tall 

 and stout, glabrous: leaves bipinnatc; leaflets linear-lanceolate to 

 lanceolate, acuminate, coarsely toothed to entire, 1 to 3 inches 

 long: umbel very unequally 10 to 25-rayed, with neither invo- 

 lucre nor involucels (or w'ith a few deciduous bractlets); rays some- 

 what scabrous, i^ to 3 inches long; pedicels thick, 2 to 3 lines long: 

 fruit glabrous, about li/^ 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. (Pig- 12.) 

 S. Utah (Ward, Palmer is:',). 



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, cusnidately acuminate, entire or the 

 lower ones 3-parted with thedecurrent somestimes coarsely toothed 

 lobes divaricate: umbels with neither involucre noi- 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 



