86 



* Oi/-f/(bcs soliiarv in all tJic intervals : \ccstcrii species. 



1. A. pinnata Watson, King's Rep. v. J'2(). Glabrous: 

 stem 2 to 3 feet iiigh: leaves simply pinnate, with 2 to 4 pairs of 

 ovate to narrowly lanceolate sharply serrate to entire leaflets (low- 

 est pair sometimes pinnate): umbels 10 to 20-raved, with neither 

 involucre r.or involucels; rays 2 to 4 inches long; pedicels 2 lines 

 long; flowers greenish-yellow or dull purple: stylopodium slightly 

 conical: fruit oblong, glabrous (at maturity), 2 to 3 lines long; 

 dorsal and intermediate ribs thick and prominent; laterals with 

 wings hardly as broad as body : oil-tubes 4 on the commissural side: 

 seed-face somewhat concave. (Fig. 7.) 



In the Wahsatch and Uinta Mountains, 7-10,000 feet altitude, and Yel- 

 low stone Park (Tweedy 3). Fl. July and August. 



A doubtful ylnfifeZjcft, its pinnate leaves, thick dorsal ribs, and greenish- 

 yellow or dull-purple floweis, ail contradicting the usual characters of 

 the genus. 



2. A. genuflexa Nutt. Torr & Gray, Fl. i. (320. Glabrous, 

 except the more or less rough pubescent inflorescence, 2 to 4 feet 

 high: leaves once to tv/ice ternate, the divisions often deflexed; 

 leaflets ovate to lanceolate, more or less acuminate, irregularly and 

 sharply serrate: umbel equally many-rayed, with no involucre, and 

 involucels of numerous linear bractlets; rays an inch or more long; 

 fruiting pedicels 4 to 6 lines long: fruit nearly round, emarginate 

 at base and apex, glabrous; lateral wings broader than body: oil- 

 tubes 2 on the commissural side: seed-face plane (Fig. 8.) — 

 Archangelica pcregri)ia Nutt. 



In wet places, Oregon, Washington Territoiy, and Vancouver Island 

 (Macotin). Fl. July and August. 



Upon consulting Nuttall's type specimens of. this species, and of his 

 Archangeliru perer/nna, the latter being in especially good condition in 

 the Torrey Herbarium, it becomes very evident thatt hey are the same and 

 that A. peref/rina is not a synonym of Cfrlopleuriun Cmelini, as has been 

 supposed. They are both from his "Wappatoo Island" station. This is 

 also Tweedij 280 from the Cascade Mts., Wash. Terr., distributed as a prob- 

 able form of A. toinentosa, and mixed with fruit of A. (ir(nit((- 



8. A. Lyallii Watson Proc. Am. Acad. xvii. 874. Gla- 

 brous throughout, stout, 4 or 5 feet high: leaves once or twice 

 ternate then quinate, the uppermost reduced to large inflated 

 petioles; leaflets ovate to lanceolate, acute or acutish, unequally 

 dentate: umbel (sometimes pubcrulent) unequally many-rayed, 



