300 UMBELLIFERAE. 



cent, •'! to I lines long; lateral wings thick and corky, as broad as the body; 

 seed deeply silicate beneath the oil-tubes. 



s.i n Francisco and northward along the coast to Washington. The Califor- 

 nia!] plants (at least) are too close to the next. 



2. A. tomentosa Wats. Stout, 2 to 5 ft. high, the stems and especially the 

 leaves finely tomentose, roughish-pubescent, or nearly glabrous; leaves ternate, 

 then pinnate; leaflets 2 to 3 in. long, ovate or almost round, 3-lobed or 

 obliquely 2-lobed, or not lobed and merely oblique, irregularly serrate; petioles 

 very much dilated at base; rays 1 to 6 in. long; pedicels 2 or 3 lines long; 

 fruit oblong or elliptical, glabrous, 3 to 4y 2 lines long; dorsal and intermediate 

 libs small and acutish ; lateral wings nearly equaling the body in breadth; 

 oil tubes 2 on the face; seed somewhat sulcate beneath the oil-tubes. 



Along the coast, San Francisco north to Mendocino and south to San Diego. 

 Var. elata Jepson. Five to 8 ft. high; radical leaves as much as 4 ft. Long; 

 Leaflets ovate-lanceolate or lanceolate, grayish puberulent, 4 to 6 in. long. — Com- 

 mon in the canons and mountains about Napa Valley. Var. californica Jep- 

 son. Roughish puberulent on the leaves and ends of the rays, the stem gla- 

 brous; leaves biternate or quinate, then once pinnate or partially bipinnate; 

 leaflets ovate, 2 in. long, the terminal mostly 3-lobed at summit, the lower 

 often lobed or divided at base, all irregularly serrate with the serratures 

 mucronulate; rays unequal, 1 to 6 in. long; pedicels subequal, 3 lines long; 

 dorsal and intermediate ribs often winged; oil-tubes 2 or 3 in the intervals, 

 2 on the face. — Vaca Mts. May-June. Fr. July- Aug. 



25. LEPTOTAENIA Nutt. 



Tall stoutish glabrous perennials, with thick fusiform roots and pinnately 

 compound leaves. Flowers yellow or purple, in compound umbels. Involucre 

 of few bracts or none. Involucels of small and numerous bractlets or none. 

 Fruit oblong to suborbicular, strongly compressed. Lateral ribs with broad 

 corky-thickened wings coherent until maturity. Dorsal and intermediate ribs 

 filiform and approximate. Oil-tubes 1 to 8 in the intervals, 2 to 10 on the 

 face. (Greek leptos, narrow, and tainia, vittae or oil-tubes.) 



Involucels none; oil-tubes present 1. L. californica. 



Involucels present; oil-tubes none 2. L. dissect a. 



1. L. californica Nutt. Erect, 2 or 3 ft. high, glaucous; leaves once or twice 

 ternate, then pinnate; leaflets 1 in. long or more, cuneate-orbicular or -obovate, 

 3-lobed or the terminal 3 -parted, Berrate above; peduncles at summit abruptly 

 widened into a disk-like dilatation; rays subequal, 2 to 3 in. long; pedicels 

 IV2 to 3 lines long; fruit elliptical, narrowly winged, 4 lines long; oil-tubes 

 6 to 10 on the face (the lateral frequently anastomosing), 3 or 4 in the 

 intervals. 



North Coasl ranges from the Napa Range to Klamath River (western 

 Siskiyou Co.) Mar.-Apr. Var. PLATYCARPA Jepson. Four ft. high; fruit more 

 broadly winged, 7 lines long. Vara Mis.; Napa Co. 



2. L. dissecta Nutt. Stems many from a thick root, leafy at base; leaves 



bn»ad. 2 or .". times ternate and then oner 01 twice pinnate, the segments 

 Incised pinnatifld ; peduncles 1 to - ft. long; rays - to 5 in. long; involucre 



of tew bracts Or none; involucels Of several lanceolate bractlets: llowers yellow 

 01 purplish; fruit oblong, 5 to !» lines long; oil-tubes none or very obscure. 



Mendocino and Lake cos.; sierra Nevada. Apr. -June. 



