258 UMBELLIFERAE 



fruit ovate to oblong-obovate, 6-8 mm. long, more or less puberulent ; wings narrower than the 

 body; oil-tubes 2-9 in the intervals, 4-12 on the commissure. 



Dry hills, Upper Sonoran and Arid Transition Zones; Oregon and eastern California, mostly east of 

 the Sierra Nevada, eastward to western Utah and southern Arizona. Type locality: "western Nevada from 

 the Washoe to the West Humboldt Mountains." April-July. 



Lomatium nevadense var. Parishii (Coult. & Rose) Jepson, Madrono 1:156. 1924. {Peucedanum 

 Parishii Coult. & Rose, Bot. Gaz. 13:209. 1888.) Mostly taller; leaf-divisions sometimes elongate, up to 

 35 mm. long; rays usually longer, 1.5-5.5 cm. long; bractlets sometimes reduced to a sheath or a single bract; 

 pedicels 3-12 mm. long; ovaries glabrous; fruit 7-10 mm. long, glabrous; oil-tubes 1-4 in the intervals, 4-7 

 on the commissure. Southeastern Oregon to northern Sonora east of the Sierra Nevada, San Bernardino Moun- 

 tains, California, east to Nevada and western New Mexico. Type locality: Bear Valley, San Bernardino 

 Mountains. 



Lomatium nevadense var. pseudorientale (M. E. Jones) Munz, Man. S. Calif. 360. 1935. iCogs- 

 wellia nevadensis var. pseudorientatis M. E. Jones, Contr. West. Bot. No. 12: 37. 1908.) Similar to variety 

 Parishii; petioles more prominently scarious-margined; fruit-wings broader than the body, the dorsal ribs 

 evident. Mountains in the Mojave Desert, California, adjacent Nevada and northwestern Arizona. Type 

 locality: Skull Valley, Arizona. 



33. Lomatium Plummerae Coult. & Rose. Plummer's Lomatium. Fig. 3573. 



Peucedanum Plummerae Coult. & Rose, Bot. Gaz. 14:278. 1889. 

 Lomatium Plummerae Coult. & Rose, Contr. U.S. Nat. Herb. 7:232. 1900. 



Plants short-caulescent, 2-3 . 5 dm. tall, glabrous, from a long slender taproot. Leaves ter- 

 nate, then bipinnate; leaf-divisions linear to oblong, 3-7 mm. long; petioles wholly sheathing; 

 rays 10-25, ascending, unequal, 0.5-7.5 cm. long; bractlets dimidiate, linear-lanceolate, acute, 

 distinct or connate to above the middle, scarious at least on the margin, prominently nerved, 

 entire or toothed; pedicels 3-8 mm. long; flowers yellow or purplish; fruit oblong to oblong- 

 ovate, 9-13 mm. long, usually acute at the apex, glabrous; wings narrower than the body; 

 oil-tubes 1, rarely 2-3, in the intervals, 4-8 on the commissure. 



Sandy slopes. Arid Transition Zone; northern Sierra Nevada from Sierra County to Shasta County, 

 California, and adjacent Nevada. Type locality: Sierra Valley, Sierra County, California. May-June. 



Lomatium Plummerae var. Sonne! (Coult. & Rose) Jepson, Madroiio 1: 157. 1924. (.Lomatium Sonnet 

 Coult. & Rose, Contr. U.S. Nat. Herb. 7:236. 1900.) Pubescent; the pedicels up to 10 mm. long; fruit 

 glabrous. Eastern Sierra County, California, and adjacent Nevada. Type locality: Verdi, Washoe County, 

 Nevada. 



Lomatium Plummerae var. Austlniae (Coult. & Rose) Mathias, Ann. Mo. Bot. Card. 25:257. 1937. 

 (Peucedanum Austiniae Coult. & Rose, Bot. Gaz. 13:208. 1888.) Pubescent; fruit ovate, about 8 mm. long, 

 not pointed at the apex. Plumas County, California, the type locality. 



34. Lomatium MacDougalii Coult. & Rose. MacDougal's Lomatium, 



Fig. 3574. 



Lomatium MacDougalii Coult. & Rose, Contr. U.S. Nat. Herb. 7: 233. 1900. 



Lomatium Jonesii Coult. & Rose, loc. cit. 



Lomatium semisepultum Peck, Proc. Biol. See. Wash. 50: 122. 1937. 



Plants acaulescent, 0.7-3 dm. tall, villous throughout, from a long slender taproot. Leaves 

 temate, then tripinnate; leaf-divisions crowded, linear to ovate, 1-5 mm. long; petioles usually 

 wholly sheathing; rays 2-14, spreading, 0.5-6 cm. long; bractlets scarious, linear, usually distinct, 

 villous; pedicels 3-10 mm. long; flowers yellow, somewhat purplish-tinged; fruit ovate to 

 suborbicular, 6-11 mm. long, pubescent; wings narrower than the body; oil-tubes 1-4 in the 

 intervals, 4-6 on the commissure. 



In sagebrush, Upper Sonoran Zone; central Oregon and eastern California, to western Wyoming and 

 centrsj Arizona. Type locality: Mormon Lake, Arizona. June-July. 



35. Lomatium dasycarpum (Torr. & Gray) Coult. & Rose. Woolly-fruited 



Lomatium. Fig. 3575. 



Peucedanum dasycarpum Torr. & Gray, Fl. N. Amer. 1 : 628. 1840. 

 Peucedanum Pringlei Coult. & Rose, Bot. Gaz. 13: 209. 1888. 

 Peucedanum Jaredii Eastw. Zoe 5:88. 1900. 



Lomatium dasycarpum Coult. & Rose, Contr. U.S. Nat. Herb. 7:218. 1900. 

 Lomatixtm dasycarpum var. decorum Jepson, Madrofio 1: 154. 1924. 

 Lomatium dasycarpum var. medium Jepson, loc. cit. 



Plants acaulescent or short-caulescent, 1^ dm. tall, villous-tomentose to glabrate, purplish, 

 especially below, from a long slender taproot. Leaves quadripinnate, occasionally ternate, then 

 pinnately decompound; leaf-divisions crowded, linear, 1-3 mm. long; rays 10-20, spreading, 

 1-8.5 cm. long; bractlets linear-lanceolate, acute, sometimes connate; pedicels 7-20 mm. long, 

 usually longer than the fruit ; flowers greenish, appearing white because of the pubescent petals, 

 or purplish; fruit orbicular to ovate-oblong, 8-15 mm. long; body tomentulose to glabrate; 

 wings broader than the body, sparingly villous to glabrate; oil-tubes 1^ in the intervals, 2-A 

 on the commissure. 



Usually in sandy or stony ground. Arid Transition and Upper Sonoran Zones; Coast Ranges, California, 

 from Humboldt and Trinity Counties to Lower California. Type locality: California. March-June. 



36. Lomatium mohavense Coult. & Rose. Mojave Lomatium. Fig. 3576. 



Peucedanum mohavense Coult. & Rose, Rev. N. Amer. Umbell. 62. 1888. 

 Peucedanum argense M. E. Jones, Contr. West. Bot. No. 8: 30. 1898. 

 Lomatium mohavense Coult. & Rose, Contr. U.S. Nat. Herb. 7: 234. 1900. 



Plants acaulescent, 1-3 dm. tall, short hoary-pubescent, from a long slender taproot. Leaves 



