262 UMBELLIFERAE. 



Involucels of numerous bractlets. A. genuflexa. 



Involucels usually wanting. 



Fruit 4-6 mm. long, the lateral wings not thick and 



cork}-. A. lyallii. 



Fruit 6-8 mm. long, the lateral wings thick and corky. A . argiita. 



Angelica hendersoni Coult. & Rose. Herbage densely tomentose; stems 

 stout, 1-2 m. high; leaves quinate, then pinnate; leaflets thick, broadly ovate, 

 obtuse, cuneate or rounded at base, serrate, 7-10 cm. long; umbel 10-12 cm. 

 broad; fruit oblong, pubescent, 6-9 mm. long, the lateral wings thick and 

 corky, as broad as the body. 



On the ocean coast, Washington to California. First collected at Ilwaco 

 by Henderson. 



Angelica genuflexa Nutt. Glabrous below the inflorescence; stems stout, 

 90-150 cm. high; leaves once or twice pinnate, the divisions more or less de- 

 flexed; leaflets ovate to lanceolate, acuminate, sharply serrate or incised; 

 umbel many-rayed, 10-15 cm. broad; bractlets of the umbellets linear; fruit 

 3-4 mm. long, glabrous, emarginate at base and apex, the lateral wings broader 

 than the body. 



Very common in swamps. First collected by Nuttall on Sauvies Island, 

 Oregon, and near Fort Vancouver, Washington. 



Angelica lyallii Wats. Stout, 60-150 cm. tall, glabrous or the inflorescence 

 sometimes puberulent; leaves ternate, then once or twice pinnate; leaflets 

 ovate or lanceolate, acute, serrate or dentate, 2-10 cm. long; umbel many- 

 rayed; involucre and involucels wanting; fruit oblong, 4-6 mm. long, the 

 lateral wings about as broad as the body; oil-tubes solitary in all the intervals. 



Wet places in the mountains at moderate elevations. 



Angelica arguta Nutt. Very similar to A. lyallii but the fruit larger, 6-8 

 mm. long, the lateral wings thick and corky. 



Known only from the type specimen collected by Nuttall in 1835 on Sauvies 

 Island, Oregon, and near Fort Vancouver, Washington. The rediscovery 

 and better understanding of this species is much to be desired. 



346. CONIOSELINUM. 



Perennial herbs, glabrous below the inflorescence; leaves 

 ternate then pinnately decompound; flowers white; calyx- teeth 

 obsolete; fruit oblong, dorsally flattened, glabrous; carpel with 

 prominent dorsal and intermediate ribs, the lateral ribs broadly 

 winged and thickish; stylopodium slightly conical; oil-tubes 

 usually solitary in the dorsal intervals, 1-several in the lateral 

 intervals, and 2-8 on the commissural side. 



Conioselinum gmelini (Cham. & Schlecht.) Coult. & Rose. Glabrous 

 below the inflorescence; stems erect, 1-1.5 m. high; leaves large, ternate, then 

 pinnately decompound, the ultimate segments ovate to linear-oblong, mostly 

 incisely cleft, 1-2.5 cm. long; umbel 10-25-rayed, the rays 2-3 cm. long; 

 bracts and bractlets narrowly linear; fruit 4-5 mm. long, with prominent ribs 

 and Ijroad wings. 



High sea-beaches and on the borders of tidal marshes. Foliage handsome, 

 fern-like. 



347. PASTINACA. P.^rsnip. 



Tall stout glabrous biennial with pinnately compound leaves; 

 flowers yellow; calyx-teeth obsolete; fruit oval, very much flat- 



