358 



I'MBELLIFERiE. 



North Coast Ranges: Santa Rosa; Sonoma; Napa Valley; plains of 

 Solano Co., and northward. 



2. P. parvifolium T. »fc G. Acaulescent or very short caulescent, 

 6 to 10 in. high, glabrous; leaves 3 or 4 in. long, ternate, then pin- 

 nately divided into 3 or 5 leaflets, or the upper leaflets confluent; 

 leaflets ovate, mostly cuneate at base, 2 or 3-cleft, incised or serrate, 

 the teeth strongly cuspidate, J to H in. long; peduncles 1 to 3; rays 

 about 10, unequal, ^ to 2 in. long; pedicels 3 to 4£ lines long; bract- 

 lets subulate; fruit broadly elliptical to orbicular, 3 to 3^ lines long, 

 the wings broader than the body; oil-tubes solitary in the intervals, 

 2 to 4 on the commissural side. 



Mountain summits west of Gilroy, Setchell and Jepson; Monterey 

 to San Luis Obispo, acc. to Coulter and Rose. May. 



3. P. Hassei C. & R. Nearly acaulescent, 16 in. high, glabrous 

 and glaucous; leaves ternate and pinnate; leaflets roundish, cuspi- 

 dately serrate, frequently 3-lobed, J to ljin. broad; peduncles several; 

 rays 11 to 18; bracelets ovate or lanceolate, or mostly one and that 

 laciniately cleft; fruit 6 to 8 lines long, nearly or quite as broad, very 

 broadly winged, emarginate at base and apex; oil-tubes 4 on the face, 

 solitary in the intervals with occasionally an additional one in one of 

 the lateral intervals. 



Summits of the inner and middle North Coast Ranges: Vaea 

 Mountains; Mt. St. Helena; Caux's Knob; first collected by Dr. 

 H. E. Hasse in Southern California. 



4. P. macrocarpum Nutt. Short caulescent, 10 to 17 in. high, 

 the stems several from a caudex which crowns an elongated tuberous 

 root; herbage with a short scattered pubescence; leaves about two 

 times ternate and twice pinnately divided, the segments linear, 

 acuminate, J line wide and 1 to 3 lines long, the ultimate divisions 

 of the rachis winged; earliest radical leaves often as much as 1 ft. 

 long, the latter scarcely \ as long; fruiting rays equal, If to 2 in. 

 long; pedicels 3 to 4 lines long; braetlets united at base, toothed or 

 laciniate above; ovary and fruit glabrous, varying from oblong or 

 somewhat quadrangular to narrowly ovate, 6 to 8 lines long, 2 to 4 

 lines broad; ribs inconspicuous or almost obsolete; oil-tubes 1 to each 

 interval, 5 or 6 on the commissural face; commissure distinctly convex 

 at maturity; seed sharply channeled beneath the oil-tubes of the dorsal 

 intervals; wings commonly broader, sometimes narrower than the 

 body. 



Dry hillsides from Monterey and Santa Clara Cos. to Antioch, and 

 northward to Red Bluff, mostly or only in the inner Coast Ranges 

 except at the south. 



5. P. dasycarpum T. & G. Nearly acaulescent, the peduncles 

 several from a stout taproot, erect or ascending, 6 to 15 in. high; 

 herbage with a short stiffish pubescence; leaves ternately decompound 

 and dissected into small narrowly linear segments; segments 1 or 2 

 lines long and less than £ line wide; fertile rays 6 to 11, 1 to 2£ in. 

 long; pedicels in fruit 3 to 6 lines long; involucels unilateral, com- 



