628 AMMIACEAE 



alate, 5-10 

 &-12 



glabrous, b-lJ mm. long, 3-4 mm. wide. P. tritematum (Pursh) Nutt. HiU- 

 sides: Calif.— Wyo.—Alta.— B.C. Submont. My-Je. . . 



26. C. robustior Coult. & Rose. 



3-6 



times 



to oblong divisions, 1-3 em. long; fruit oblong, 12-14 mm. long, 5 mm. M-ide. P. 

 tnternalummacrocarpum Coult. & Rose. P. triternalum robustius Coult. & Rose. 

 Valleys: Ore.— Ida.— Wash. Son. —Submont. Ap-Je 



Z7. U anomala ME. Jones. Perennial, with a large taproot; stem 3^5 

 dm. high stout, somewhat puberulent; leaves ternate, then bipinnate; leaflets 

 Imear-oblong or oblanceo ate, mostly obtuse, 1-7 cm. long; bractlets linear or 

 setaceous; fr ait elliptic, 10-12 mm. long, 4-5 mm. broad; wings not half as 

 broad as the body. Lomahum anomalum M. E. Jones. Hillsides and slopes: 

 Ida. — Ore. Submont. My-Je. 



r..f^.^'f ^' o"«^!f *"!^^ F'^Pl'^ ^^' ?• J^^^s- Perennial, with a long fleshy tap- 

 root, stem 3-6 dm high glabrous; leaves biternate, ternately quinate, or some- 

 times ternate; leaflets thickish, ovate or lanceolate, 2.5-5 cm. long, entire or 

 toothed at the apex; bractlets none; fruit narrowly elliptic, 9-14 mm. long, 3-6 



mm wide, narrowly winged. Gravelly soil: Calif.— Ida.— B.C. S<m.~Sub- 

 mont. My-Je. 



29. C. platyphylla Coult. & Rose. Perennial, with a taproot: stem 2-4 

 dm high; leavers once or twice ternate; leaflets ovate, orbicular or obovate, entire 

 or toothed at the apex; bractlets none; fruit 8-12 mm. long, 5-6 mm. wide; wings 

 narrow P. lahfohum Nxitt. P. NnttaUii S. Wats. Lomatium plalyphyllum 

 Coult. & Rose. Dry plams: Ore.— Nev.— Ida.— Wash. So7i. —Submont. An- 



33. LEPTOTAENIA Nutt. Wild Parsnip. 



TaU stout, acaulescent perennials, with thick fusiform roots. Leaves large, 

 pmnately decompound. Flowers yellow or purplish, in large umbels. Bracts 

 tew or none ; bractlets numerous, smaU. Calyx-teeth obsolete or minute. Fruit 

 strongly Hattened dorsally oblong or elliptic, glabrous. Stylopodium wanting. 

 JJorsai and intermediate ribs filiform or obscure, the lateral ones with thick and 

 corky wmgs Oil-tiibes 3-6 m the mtervals, 4-6 on the commissural side, mostly 

 small, sometimes obsolete. Seeds very fiat; face plane" or slightly concave. 



Flowers yellow or salmon-colored. 



Foliage puberulent; dorsal ribs faint; flowers yellow. 



*ruat sessile or nearly so; staminate flowers with loTi£rT.efii>.f.is i T. fniin-in 



linear divisions 

 Fruit 14-18 mm. lo 



staminate flowers, 

 oil-tubes; leaves finely dissected i: 



2. L. muUifida. 



Foliage glabrous; dorsal ribs strong. ^' ^' Eatoni. 



Frmt broadly oblong, 5-6 mm.- broad. 4 r salmoniflora 



^ ^ 6. L. purpurea. 



r. +V ^' f°^^°!^, (Hook.) Coult. & Rose. Stem about 6 dm. high; leaves twice 

 or thnce ternately compound, then twice or thrice pinnatifid, with linear lobes, 

 slightly puberulent; bracts several, linear; bractlets few, linear; fruit ahnost 

 sessile, staminate flowers on slender pedicels. Hillsides: Ida. Submont. My-Je. 

 tr,o?'+r "^"Itifida Nutt. Stem 3-10 dm. high; leaves twice or thrice ternate, 

 ;^f.^i,!. ''^ ""■ n "^ times pinnatifid into linear divisions, more or less puberulent ; 

 J\AZ "«"t"^ none; bractlets few, linear-filifonn ; fruit 8-12 nun. fong; dorsal 

 ribs abnost obsolete Rich soil m the mountains: Alta.-Colo.-Calif.-B.C. 

 tiubmont. — Mont. My-JI. 



fhJ\iL^^^?^^ Coult. & Rose. Stem 3-10 dm. high; leaves twice ternate, 

 then once or twice pinnate; leaflets ovate, cleft and lobed, with oblong or lance- 

 obong divisions; bracts few Imear-subulate, or none; fruit 14-18 mm. long, 



t^llP.Tn ;,•!'•? *w ^'^^^'1' ^™^i^ oil-tubes in the intervals. Hills and mouh- 

 tains m rich soil: Wyo.— Colo. -Nev.— Ida. Submont.— Mont. Je-Jl. 



