52 



ribs, and sccil-facc concave (the carpel section being crescentic). 

 (Fig. 8-"),) — Ferula luuUifda Gray, Proc. Am. Acad. vii. 848. 



From S. California to British Columbia. {Mucotin, Z)««vso;(,i, eastward to 

 Utah, Wyoming (FonrooiJ), Idaho and W. Montana. Fl. May and June. 



* * hritit wit/i oil-tiibcs and pedicels {j.to 12 /ii/cs /o?/o). 



8. L. Eatoni. Like tl.e last, but with less dissected leaves, 

 few-rayetl umbels, pedicels of fruit -4 to (5 lines long, fruit 8 or 9 

 lines long, 4 or 5 lines broad, flatter and thinner than in any other 

 species, oil-tubes 4 to (> in the intervals, 4 on the commissural side, 

 a prominent corky nerve on the commissural face of the lateral 

 wing near the inner margin, and seeil-face plane. (Fig. 86.) 



Utah (D. (J. Euion U7, in 1SG9). Fl. June. 



This species was collected and distributed as L- midtifuln, but the 

 decidedly different fruit charaeterii seem to justify its separation. 



4. L. WatSOni. Foot high or less, rather stout, somewhat 

 branching: leaves few and small, at or near the base, ternatc-pin- 

 nately decompound, the ultimate segments very small, ovate and 

 cuspidate: umbel with 5 to 10 variously elongated divaricate rays, 

 no involucre, and involucels of few setaceous bractlets; rays 2 to 

 4 inches long; fruiting pedicels (2 to 8 or 10 in number) about 

 half inch long and divaricate: fruit (immature) 6 lines long: oil- 

 tubes 8 in the intervals: seed-face concave. 



Collected in Canbys X. Transcontinental Survey, in the Wenatchle 

 region, Washington Territory, altitude 4,000 feet, July, l<ss:{ (Brandegep 

 SOI, TvPi'thi 84S). 



">. L. purpurea. About a foot high: leaves completely 

 glabrous, \ cr)- much dissected, the ultimate segments linear or 

 filiform : umbel 8 to 20-rayed, with no involucre, and involucels of 

 several linear acuminate bractlets; rays 8 or 4 inches long; flowers 

 purple: fruit *.) to 12 lines long, as long as the pedicels, 5 to (3 lines 

 broad, witli a much more prominent corky margin and commis- 

 sural ridge than in any other species: oil-tubes prominent, 8 in the 

 intervals of the distinct dorsal and intermediate ribs, 4 on the com- 

 missural side. (Fig. 87.) — Ferula purpurea Watson, Proc. Am. 

 Acad. xxi. 458. 



On rocky hillsidcb near the Columbia Eiver in Oregon and Washington 

 Territory. 



