626 AMMIACEAE 



V u* 9'u^^^ °^ ^^- ^a*^s-) M- E. Jones. Corm napiform; stem 1-4.5 dm. 

 high, glabrous or shghtly puberxilent; leaves ternate, then repeatedly pinnate, 

 with numerous fiUform divisions; sheath inflated; bractlets 1-8, linear-subulate; 

 pedicels _ very short; fruit linear-oblong, glabrous, 10-12 mm. long, 2-5 mm. 

 wide; wings very narrow. P. bicolor S. Wats. HiUsides: Utah— Ida.— Mont. 

 oon. — Submont. My-Je, 



8. C. circumdata (S. Wats.) M. E. Jones. Conn subglobose; stem 2-3 dm. 

 high, more or less leafy; leaves ternate, then once or twice pinnate; ultimate 

 segments hncar, 2^12 mm. long; sheath of the stem-leaves broadly dilated; 

 bractlets oblanceolate, becoming scarious; fruit oblong-elliptic, 6-8 mm. long, 3 

 mm. wide, with narrow wings. P. circmndatum S. Wats. Hillsides: Wash.— 

 Mont. — Ida. — Ore. Suhtnont. Ap-Je. 



9. C. Cous (S. Wats.) M. E. Jones. Corm globose or napiform, 1-2.5 cm. 

 thick; stem scapiform, 5-15 cm. high; leaves ternate, then twice pinnately dis- 

 sected; ultimate segments short, linear, entire or few-toothed; bractlets broadly 

 oblanceolate, scarious-margined; fruit elliptic, scabrous-puberulent, 6-8 mm. 

 long 3-4 mm. 'uade, with narrow wings. P. Cous S. Wats. Stony ridges: Ore. 

 — Ida. — Wash. Plain — Submont. Ap-Je. 



10. C. montana (Coult. & Rose) M. E. Jones. Corm napiform or fusiform, 

 or plant sometimes \\dth thickened roots; scape ^-3 dm. high; leaves usually 

 temat^ and then once or twice pinnate; leaflets short-oblong, crowded; bract- 

 lets obovate or oblanceolate, with white or purplish scarious margins; fruit 



u^^v^^i glabrous, 5-6 mm. long, 2-3 mm. wide; wings about half as broad as 

 the body. Lomalmm ?nontanum Coult. & Rose. L. purpureum A. Nels. Hill- 

 sides: Ore.— Wyo.— N.D. SubmonL—Mont My-Je. 



^u V ^' <^^^cinna Osterhout. Perennial, from a fleshy root; stem 2-3 dm. high, 

 much branched near the ground; leaves sheathing at the base, 1 dm. long, ovate 

 m outhne, glabrous, twice pinnately divided into linear-oblong divisions; ped- 



J^? J- "? T^' ^^^^' decumbent at the base; bractlets united, forming a single 

 leaf, divided into oblong lobes; fruit oval, 7-8 mm. long; wings broad; oil-tubes 

 5-10 in the intervals, 8-15 on the commissure. Hills: Colo. Submont. My. 



12. C. orientalis (Coult. & Rose) M. E. Jones. Perennial, with a thick 

 taproot; stem often scapiform, 1-3 dm. high; leaves bipinnate; segments oblong 

 or lanceolate, pinnately cleft into short oblong divisions, grayish-pilose with 

 short hairs; bractlets lanceolate, distinct, scarious-margined; fruit glabrous, oval, 

 5 mm. long, 4 mm. wide; wings not as broad as the body. P. nudicaule Nutt. 

 m part. Lovmiium orientale Coult. & Rose. Dry plains: Minn.— Kans.— 

 N.M.— Ariz.— Mont. Plain—Suhmont, Ap-Je. 



13. C, nevadensis (S. Wats.) M. E. Jones. Perennial, with a fusiform 

 root; stem short, 1-4 dm. high, puberulent; leaves twice or thrice pinnatifid, 

 grayish-pilose, with small oblong divisions; bractlets linear-lanceolate, usually 

 distinct; fruit oval or ovate, somewhat pubescent, &-10 mm. long, 4-8 mm. 

 wide; wmgs almost as broad as the body. P. nevadense S. Wats. Mountains: 

 Ore.— Utah— Ariz.-Calif. Son. Submont. Ap-My. 



14. C. macrocarpa (Nutt.) M. E. Jones. Perennial, with an elongate 

 fusiform root; stem 1-6 dm. high, more or less pubescent, branched at the base; 

 leaves tliree or four times pinnately (or the first division ternately) dissected 

 into short linear or oblong divisions, more or less pubescent; bractlets somewhat 

 fohaceous, lanceolate or hnear, often united and unilateral; calyx-teeth evident; 

 frmt elhptic, glabrous, 1-2 cm. long, 5-7 mm. wide; wings nearly as broad as 



t?^^^?.^- •^- ^(^c^ocarpum Nutt. Hills and plains: Sask.— Colo.— CaUf.— 

 B.C. Plain — Sub7nont. Ap-Je. 



15. C. villosa (Raf.) Schultes. Perennial, with a fusiform root; leaves 

 finely dissected, first ternate, then several times pinnate, villous; segments 

 numerous, hnear, crowded; bractlets conspicuous, lanceolate, more or less united, 

 very tomentose; pedicels 2-6 mm. long; fruit oval, puberulent or pilose, 5-8 mm. 

 long, 4^5 mm. vnde. L. villosum Raf. Dry plains and hills: Sask.— w Kans.-- 

 Wyo.— Alta. Plain — Submont. My-Je. 



