356 UMBELLIFER*. 



broadly oblong, sligbtly pubescent, 3 to 4 lines long; lateral wings 

 thick and corky, as broad as the body; seed deeply suloate beneath 

 the oil-tubes. 



Point Loboe, San Francisco, and northward along the coast beyond 

 the state boundary. July-Aug. 



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 IJ to 4 in. long; pedicels 2 or 3 lines long; fruit oblong or 

 elliptical, glabrous, 3 to 4J lines long; dorsal and intermediate ribs 

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

 oil-tubes 2 on the commissural side; seed somewhat sulcate beneath 

 the oil-tubes. 



Near the coast: San Francisco and Marin Co. 



Var. elata. Pive to 8 ft. high; radical leaves as much as 4 ft. 

 long; leaflets ovate-lanceolate or lanceolate, grayish puberulent, 4 to 

 6 in. long. — Common in the canons and mountains about Napa 

 Valley. 



Var. Californica (A. Californica Jepson). Koughish puberulent 

 on the leaves and ends of the rays, the stem glabrous; 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 Mountains. May-June. Fr. 

 July-Aug. 



24. LEPTOT/ENIA Nutt. 



Tall stoutlsh 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 approxi- 

 mate. Oil-tubes 1 to 8 in the intervals, 2 to 10 on the commissural 

 side. (Greek leptos, narrow, and tainia, vittse or oil-tubes.) 



Leaflets 3-lobed or -partecJ, 1 in. long or more; involucels none; oil-tubes 



present 1. £. Californica. 



Leaflets dissectea into small linear lobes ; involucels present; oil-tubes none. 



2. I. dissecta. 



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- 

 orbioular or -obovate, 3-lobed or the terminal 3-parted, serrate above; 

 peduncles at summit abruptly widened into a disk-like dilatation; 

 rays subequal, 2 to 3 in. long; pedicels IJ to 3 lines long; fruit ellip- 

 tical, narrowly winged, 4 lines long; oil-tubes 6 to 10 on the face (the 

 lateral frequently anastomosing), 3 or 4 in the intervals. 



