634 UMBELLIFERAE 



ranch to Hawkins Bar, Trinity Co., Jepson 1996; Yreka, Butler 740. Sierra Nevada: Agua Fria, 

 Mariposa Co., Congdon; Antelope Valley, s. of Truckoo, L. S. Smith 1603; Fall River Sprs., Hall 

 4- Babcnck 41206. 



Var. multifida Jepson. Washoe Eoot. Leaves dissected into linear segments 2 to 4 lines 

 long; fruiting pedicels 3 to 7 lines long; fruit 5 to 7V2 lines long; seed face concave. — Montjine, 

 3500 to 8000 feet: mountains of Soutliern California; Tehachapi Mts. ; east side or easterly 

 summit valleys or canons of the Sierra Nevada from Inyo Co. to Modoc Co. Eastward to New 

 Me.xico and ^lontana, north to Washington. 



Locs. — S. Cal. mts.: San Antonio Mts., Pcirson 2153 (Coldwater Canon), 3187 (Big Pines) ; 

 Elizabeth Lake region, ace. Pcirson ; Indian Canon, San Rafael Mts., Hall 7807. Tehachapi Mts.: 

 Double Mt., Jepson 7422. Sierra Nevada: Andrews Camp, w. Inyo Co., A'. Brandegee ; Kennedy 

 Lake, Tuolumne Co., A. L. Grant 245, 211; Truckee, Sonne; Sierra Valley, Lemmon; Ft. Bidwell, 

 Manning 110. 



Refs.— Leptotaenia dissecta Nutt. ; T. & G. Fl. N. Am. 1 :630 (1840), type loc. mouth of the 

 Willamette River, Nuttall; Jepson, Fl. W. Mid. Cal. 357 (1901), ed. 2, 300 (1911). Man. 718 

 (1925), FeruZadissec<aGray,Proc. Am. Acad. 7:348 (1868). F. dmoZw/a Wats. Bot. Cal. 1 : 271 

 (1876). Var. MULxmiu Jepson, Madrono 1:145 (1923), Man. 718 (1925). L. multifida Nutt.; 

 T. & G. Fl. 1:630 (1840), plains of the Columbia River east of Walla Walla and in the Blue Mts., 

 Nuttall; C. k R. Contrib. U. S. Nat. Herb. 7:198, fig. 59 (1900). 



3. L. anomala C. & R. Viper Parsnip. Plants 10 to 12 inches high, glabrous 

 throughout; leaves all basal, ternate, then pinnate, the divisions few, distant, very 

 narrowly linear, i/o to 3 inches long; peduncles arising from the root-crown, slen- 

 der, 6 to 8 inches high; rays 3 to 6, unequal, li/4 to 3 inches long in fruit; pedicels 

 about 1 line long, the umbellets in fruit forming a compact cluster; involucre none; 

 involueels conspicuous, the bractlets prominent, obovate, scarious-margined, veiny, 

 toothed near the apex, more or less united; fruit elliptic to oblong, 3 to 4 lines 

 long, the lateral ribs corky-thickened (much thicker than the body), the others 

 filiform; oil-tubes none or inconspicuous. 



Foothills, 200 to 1300 feet : Sierra Nevada foothills from Amador Co. to Nevada 

 Co.; Shasta Co. Apr., fr. June. 



Locs. — Carbondale, Amador Co.; Gautier bridge, Bear River, w. Nevada Co., Hall 10,153; 

 Anderson, Shasta Co., Alice King. 



Refs. — Leptotaenia anomaIjA C. & R. Rev. N. Am. Umbell. 53 (1888), type loc. Carbondale, 

 Amador Co., Curran; Jepson, Man. 718 (1925). 



4. L. humilis C. & R. Lava Parsnip. Like no. 3; bractlets linear to lance- 

 olate, entire; wings of the fruit corky-thickened but not as thick as the bodv. 



Plains, 200 to 500 feet : Butte Co. to Tehama Co. Mar., fr. May. 



Tax. note. — Leptotaenia humilis is so little known that a proper evaluation of it is not yet 

 possible. Lying within the natural range of L. anomala C. & R., its relationship to that species 

 is uncertain, while as to the flowering stages a closer definition of it as opposed to Lomatium 

 marginatum C. & R. and Lomatium alatum C. & R. is much needed. 



Locs. — Chico; Red Bluff (rubble field 4 mi. ne.), Jepson 16,359. 



Var. denticulata Jepson. Wings of the fruit with denticulate margins; intervals commonly 

 with about 3 longitudinal striae. — Blue Ravine, Eldorado Co. 



Refs — Leptotaenia humilis C. & R. Contrib. U. S. Nat. Herb. 7:200 (1900), type loc. plains 

 near Chico, Bruce 2661; Jepson, Man. 718 (1925), Var, denticui^ta Jepson, Madrono 1:146 

 (1923), type loc. Blue Ravine, Eldorado Co,, K. Brandegee; Man. 718 (1925), 



24. LOMATIUM Raf. Hog-Fennel 



Low perennials, mostly of dry ground, with thick roots. Stems usually several 

 from the root-crown, naked or few-leaved. Leaves decompound, often dissected, 

 wholly basal or sometimes partly sub-basal. Flowers white or yellow, rarely 

 purple, in compound umbels. Involucre none (a few species sometimes with 1 to 

 3 bracts). Involueels usually present. Fruit roundish to broadly or narrowly 

 oblong, much compressed. Lateral ribs winged, the wings of the companion car- 

 pels coherent until maturity. Stylopodium wanting or not obvious in the fruit. 

 Oil-tubes 1 to 4 in the intervals, 2 to 6 on the commissure. — Species 60, western 

 North America. (From Greek loma, a border, referring to the winged fruit.) 



