646 UMBELLIFERAE 



21. L. nudicaule C. *t K. Pkstlk Parsnii'. Plants 8 to 20 iiu-lies liij^li, jrla- 

 brous; leaves 3Vi to 5% inches lonp:, once or twice ternate, then pinnate with 5 to 

 9 leaflets; leaflets broadly ovate to lanceolate, entire or few-toothed at apex, % to 

 2^4 inches long; peduncles stontish, arisint; from the base, conspicuously enlarged 

 at summit (pestle-like) and bearing 6 to 18 very nno(iual rays, the outer sometimes 

 2 to 4 times the length of the inner; rays in fruit dilated at apex, 1 to 614 inches 

 long; fruiting pedicels 1 to 3 lines long; bracts and bractlets none; flowers yellow; 

 fruit linear to oblong, sometimes elliptic, 5 to 7 lines long, 1 to 2 (or 3) lines wide, 

 the wings 14 ^l^e breadth of the body; oil-tubes broad, solitary in the dorsal inter- 

 vals, 1 or 2 in the laterals, 4 to 6 on the commissure. 



Open foothills or rolling plains, 130 to 7000 feet : Mt. Pinos region; Coast Ranges 

 from Santa Clara Co. to Siskij^ou Co.; Sierra Nevada from Sierra Co. to Modoc Co. 

 North to British Columbia. Apr.-May, fr. June. 



Loes. — Mt. Pinos region: Ft. Tcjon, Eall 6294; Frazier Mt., Hall 6612. Middle and inner 

 Coast Eanges and their bordering rolling plains: Mt. Hamilton, Jcpson 4210; Mt. Diablo, Jepson 

 14,314; Sonoma Valley, Jepson 4771; Napa, Jepson 14,316; Conn Valley, Napa Eange, Jepson 

 14,331; Cannon sta., Solano Co., Jepson 14,315; Burnt Ranch, Trinity Co., Tracy 6421; Yreka, 

 Butler 1363. Sierra Nevada: Sierra Valley, Sierra Co., Jepson 8045; Genesee Valley, Eall Sr 

 Babcoch 4441; Jess Valley, Modoc Co., L. S. Smith; Goose Lake Valley, Austin ^ Bruce 2287. 



Eefs. — LoMATiUM NUDICAULE C. & R. Contrib. U. S. Nat. Herb. 7:238 (1900) ; Jepson, Man. 

 725, fig. 708 (1925). Smyrnium nudicaule Pursh, Fl. 196 (1814), type loc. Dalles, Columbia 

 River, Lewis. Peucedanum midicaule Nutt. ; T. & G. Fl. 1:627 (1840) ; Jepson, Fl. W. Mid. Cal. 

 ed. 2, 301 (1911). Cogswellia nudicaulis Jones, Contrib. W. Bot. 12:31 (1908). Peucedanum 

 robustum Jepson, Erythea 1:9 (1893), type loc. Cannon sta., Solano Co., Jepson 14,315. P. 

 leiocarpum Jepson, Fl. W. Mid. Cal. 357 (1901). 



22. L. ambiguum C. & R. var. leptocarpum Jepson, Oregon Biscuit. Plants 

 glabrous, 1 to II/2 feet high; peduncles ascending from the root-crown of the tap- 

 root which is tuberous below; leaves once or twice ternate, then pinnate, the ulti- 

 mate segments linear, 5 to 10 lines long; rays few, very unequal, 1 line to 3 inches 

 long; bractlets small, linear; flowers yellow; rays erect in fruit, thus forming a 

 narrow or strict umbel; fruits nearly sessile, forming dense umbellets, linear or 

 somewhat lanceolate, 4 to 4^ lines long, the wings very narrow ( ^ to % as wide 

 as the body) ; oil-tubes solitary in the intervals. 



Hillsides and fiats, 3500 to 5500 feet : Lassen and Modoc Cos. North to Oregon 

 and Idaho, east to Colorado. May, fr. June-July. 



Locs. — Big Valley, near Bieber, Lassen Co., BaTcer 4r Nutting ; Jess Valley, Modoc Co., L. S. 

 Smith. 



Refs.— LoMATiUM AMBIGUUM C. & R. Contrib. U. S. Nat. Herb. 7:212 (1900). Eulophus 

 ambiguus Nutt. Jour. Acad. Phila. 7:27 (1834), type loc. Flathead River, w. Mont., Wyeth. Var. 

 LEPTOCARPUM Jepson, Madrono 1:159 (1924), Man. 725 (1925). Peucedanum leptocarpum 

 Nutt.; T. & G. Fl. 1:626 (1840), type loc. Columbia River plain near the Willamette River, 

 Nuttall. Lomatium leptocarpum C. & R. Contrib. U. S. Nat. Herb. 7:213 (1900). Cogswellia 

 leptocarpa Jones, Contrib. W. Bot. 12:33 (1908). Peucedanum triternatum var. leptocarpum 

 T. & G. I.e. P. ambiguum var. leptocarpum C. & R. Rev. N. Am, Umbell. 59 (1888). 



23. L. piperi C. & R. Indian Biscuit. Plants IV3 to 5 inches high, the slender 

 peduncles divaricate, borne on very short erect subterranean stems which rise from 

 globose tubers 4 to 7 lines in diameter; herbage glabrous; leaves basal, bitemately 

 divided into linear-lanceolate segments 4 to 12 lines long; umbels small, 2 to 4- 

 rayed; flowers white; bractlets narrow-lanceolate; fruiting rays 3 to 10 lines long; 

 fruiting pedicels i/4 to 1 line long; fruit elliptic, 2 to 3 lines long, the wings I/2 as 

 broad as the body; oil-tubes minute, 2 or 3 in the intervals, 4 on the commissure. 



Hillsides, 2600 to 4900 feet : Sierra Co. to Siskiyou Co. North to Washington. 

 Feb., fr. May. 



Locs. — Sierra Valley, Lemmon: Long Mdws., Devils Garden, Modoc Co., L. S. Smith 1196; 

 Edgewood, Siskiyou Co., Eisling; Yreka, Butler 578, 1130. 



