CARROT FAMILY 267 



59 Lomatium laevigatum (Nutt.) Coult. & Rose. Smooth Lomatium. 



Fig. 3599. 



Peucedanum laevigatum Nutt. ex Torr. & Gray, Fl. N. Amer. 1; 627. 1840. 

 Lomatium laevigatum Coult. & Rose, Contr. U.S. Nat. Herb. 7:225. 1900. 



Plants caulescent, 2.5-3.7 dm. tall, glabrous, tufted at the base. Leaves ternate, then 2-3- 

 pinnate ; leaf-divisions distinct, linear, 5-35 mm. long, acute ; rays 9-20, ascending, unequal, 

 7-45 mm. long; bractlets usually absent; pedicels 4-10 mm. long; flowers yellow; fruit oblong, 

 6-10 mm. long; wings slightly narrower than to equaling the body; oil-tubes solitary in the 

 intervals, 2 on the commissure. 



Rocky bluffs and ridges, Arid Transition and Upper Sonoran Zones; Columbia River Valley, Washington 

 and Oregon. Type locality: "Blue Mts., Oregon." April-June. 



60. Lomatium idahoense Math. & Const. Idaho Lomatium. Fig. 3600. 



Lomatium idahoense Math. & Const. Bull. Torrey Club 70: 58. 1942. 



Plants caulescent or short-caulescent, glabrous, 2-A dm. tall, from a long slender taproot. 

 Leaves ternate-pinnate or partially bipinnate ; leaf-divisions linear to oblong, 1-10 cm. long; 

 rays 3-7, ascending, 2-8 cm. long, unequal, slender; bractlets none; pedicels 5-15 mm. long; 

 flowers yellow; fruit narrowly oblong, acute at apex, 10-12 mm. long; wings much narrower 

 than the body; oil-tubes solitary in the intervals, 2 on the commissure. 



elly slopes Arid Transition Zone; western Idaho, and probably in adjacent Oregon, as it occurs 

 iaho side of the Snake Canyon. Type locality: Beaver Creek, 25 miles northwest of Stanley, Custer 



Grav 

 on the Idaho 

 County, Idaho. May-July 



61. Lomatium Suksdorfii (S. Wats.) Coult. & Rose. Suksdorf's Lomatium. 



Fig. 360L 



Peucedanum Suksdorfii S. Wats. Proc. Amer. Acad. 20: 369. 1885. 

 Lomatium ^iuksdorfii Coult. & Rose, Contr. U.S. Nat. Herb. 7 : 239. 1900. 



Plants caulescent, glabrous, 9-21 dm. tall, stems from a cluster of old leaf-sheaths. Leaves 

 quinate, biquinate or biternate, then 1-2-pinnate ; leaf-divisions remote, linear, acute, 10-30 mm. 

 long; rays 13-25, spreading, unequal, 3-11 cm. long; bractlets linear, acuminate, subscanous, 

 deciduous at maturity; pedicels 6-17 mm. long; flowers yellow; fruit hnear-oblong. 15-32 mm. 

 long; wings thin, narrower than the body; oil-tubes 1, rarely 2>-A, m the intervals, 2 on the 

 commissure. 



Gravelly or rocky soils. Arid Transition Zone; Klickitat County, Washington. Type locality: dry rocky 

 mountain sides, western Klickitat County, Washington. May-June. 



Lomatium Suksdorfii var. Thompsonii Mathias, Ann. Mo. Bot. Gard. 25:289. 1937. Foliage and 

 stems finely and sparingly pubescent; leaves biternate, rarely quinate, then bipinnate; leaf-divisions 8-16 mm. 

 long; bractlets longer than the flowers; ovaries and young fruit puberulent; fruit 24-28 mrn. long, 8-10 mm. 

 broad, glabrate. Wenatchee region, north-central Washington. Type locality: Pashastin, Okanogan County. 



62. Lomatium Brandegei (Coult. & Rose) J. F. Macbride. Brandegee's 



Lomatium, Fig. 3602. 



Peucedanum Brandegei Coult. & Rose, Bot. Gaz. 13: 210. 1888. 



Lomatium Brandegei J. F. Macbride, Contr. Gray Herb. No. 56: 35. 1918. 



Plants caulescent, 1.5-6 dm. tall, from an elongated taproot. Stems glabrous, alternately 

 few-branched; leaves mostly basal from a cluster of dried sheaths, ternate, then 2-3-pinnate; 

 leaf-divisions remote, linear-lanceolate to oblanceolate, 10-40 mm. long, acute, the margins 

 glabrous to granulate-roughened; rays 10-21, spreading, sometimes reflexed, subequal, 4-43 

 mm. long; bractlets linear, acute, subscarious ; pedicels 0.5-5 mm. long; flowers yellow; fruit 

 linear-oblong, 9-12 mm. long, usually reflexed; wings narrower than the body; oil-tubes 1-4, 

 usually 3, in the intervals, 6-7 on the commissure. 



Ro'ckv mountain slopes. Arid Transition and Boreal Zones; eastern slopes of the Cascade Mountains, 

 Wenatchee region, north-central Washington. Type locality: "Walla Walla region,' Washington. May-July. 



63. Lomatium calif ornicum (Nutt.) Math. & Const. California Lomatium. 



Fig. 3603. 



Leptotaenia f californica Nutt. ex Torr. & Gray, Fl. N. Amer. 1: 630. 1840. Not Peucedanum calif ornicum 



Nutt. 1840, nor Coult. & Rose, 1888. 

 Leptotaenia californica var. platycarpa Jepson, Erythea 1:8. 1893. 

 Leptotaenia californica var. dilatata Jepson, op. cit. 63. 

 Lomatium calif ornicum Math. & Const. Bull. Torrey Club 69:246. 1942. 



Plants caulescent, glabrous and glaucous, 3-12 dm. high from stout, thickened roots, the 

 stem arising from a clump of fibrous sheaths. Leaves 1-2-ternate or ternate-pinnate; leaf- 

 divisions cuneate to obovate, 20-50 mm. long, usually 3-cleft and coarsely toothed or lobed, with 

 usually obtuse lobes; rays numerous, spreading, 3-8 cm. long, often dilated into a prominent 

 di.sk at base ; bractlets few, linear, scarious, or none ; pedicels 4-12 mm. long ; flowers yellow ; 

 fruit oblong-oval, 10-15 mm. long, glabrous; wings thin to thick and corky, narrower than the 

 body ; oil-tubes 3-4 in the intervals, 6-10 on the commissure. 



Moist shaded slopes. Transition and Upper Sonoran Zones; Coast Ranges from southern Oregon to 

 southern California. Type locality: Santa Barbara, California. April-June. 



