CARROT FAMILY 611 



1. G. occidentalis Nutt. Stem stout, usually puberulent, 6-12 dm. high; 



leaves twice or thrice pinnately ternate; leaflets oblong-lanceolate, 3-10 cm. long, 

 acute, serrate; pedicels 2-8 mm. long; fruit distinctly beaked; st3'lopodium 

 conic, nearly 1 mm. long. Osmorrhiza occidentalis Torr. Hillsides and valleys; 

 Alta. — Colo. — Calif. — B.C. Suhmoni. — Mont, Je-Au. 



■ 2. G. maxima Rydb. Stem 1 m. high or more, puberulent or glabrous, 

 pilose at the nodes; lower leaves twice compound, first pinnate and the lower 

 primary divisions ternate; the upper leaves ternate or twice ternate; leaflets 

 oblong-lanceolate, 5-10 cto^. long, minutely puberulent; pedicels in fruit 1-1.5 

 cm. long; fruit contracted above into a beak, 2 mm. long; stylopodiuin come, 

 0.5 mm. long. Mountains: Utah — Mont. Suhmoni. Jl-Au. .^v^ ^ 



7. LEIBERGIA Coult. & Rose, 



Slender glabrous acaulescent plants, from small globose corms. Leaves 

 ternately divided into long filiform leaflets. Flowers white, in irregular umbels. 

 Calyx-teeth obsolete, Stylopodium wanting. Fruit slightl}' flattened laterally, 

 linear, beaked, glabrous. Ribs filiform. Oil-tubes small, solitary in each inter- 

 val, 2 on the commissural side. Seed-face broad, slightly concave, but in dr3-ing 

 becoming involute. 



1, L. orogenioides Coult. ife Rose. Stem 1-5 dm. high;branchesof the umbels 

 3-10, often spreading, 2-12 cm. long; pedicels very short; fruit 8 mm. long, 1 

 mm. broad. Cogswdlia orogcnioides M. E. Jones, in part. Wet grounds, pine 

 woods: Ida. — Wash. My-Je. 



8, OROGENIA S. Wats. Turkey Peas. 



Dwarf glabrous acaulescent perennials, with tuberous or fusiform corms or 

 roots. Leaves ternate, with linear divisions. Flowers white, in small sub- 

 compound umbels with very unequal rays. Calyx-teeth minute. Stylopodium 

 depressed. Fruit oblong, slightly flattened laterally, glabrous. Carpels strongly 

 flattened dorsally. Dorsal and intermediate ribs filiform; lateral ribs strongly 

 corky thickened and inflexed towards the other carpel, leaving empty cavities 

 between them, the carpels, and a thick corky projection from the middle of the 

 commissure of each carpel. Oil-tubes ver>' small, 3 in each inter%"al, 2-4 on the 

 commissural side. Seed-face slightly concave. 



stem from a deep-seated round corm. 1. O. lineari folia. 



Stem from a fiisiform long root. 2, O. Leibergii. 



1, O. linearifolia S. Wats. Stem scapiform, usually about 1 dm. high; 

 leaves 2-3, ternate or biternate, slender-petioled, glabrous; divisions entire, 

 linear, 2-5 cm. long, 2-6 mm. wide; umbels 2-10-rayed; flowers sessile or nearly 

 so; fruit 3-4 mm. long; ribs rather prominent. Moimtain sides and ridges: 

 Wash. — Ore. — Utah— Colo. Submont, — MonL Mr-Je. 



2. O. Leibergii (Coult. & Rose) Rydb. Stem scapiform, 3--4 dm. high, 

 glabrous; leaves twice or thrice ternate; divisions 2-4 cm. long, linear. O.fusi- 

 for mis Leibergii Coult. & Rose. Sand hills: Ida. Je. 



9. EULOPHUS Nutt. 



Glabrous caulescent perennials, with fascicled tuberous roots. Leaves pin- 

 nately or ternately compoimd, with narrow, linear to oblong-linear leaflets, of 

 which the terminal one usually is elongate. Bracts lanceolate or rarely_ want- 

 ing; bractlets lanceolate, several, subscarious. Flowers wliite or pinkish, in 

 long-peduncled umbels. Cal^^-teeth prominent. Stylopodium conic; styles 

 long, recur\^ed. Fruit laterally flattened, ellipsoid to linear-oblong, glabroiis. 

 Ribs filiform; pericarp thin. Oil-tubes 1-5 in the intervals, 4-8 on the commis- 

 sural side. Seed-face broadly concave, with a central longitudinal ridge. 



1. E. Bolanderi (A. Gray) Coult. & Rose. Stem 3-6 dm. high; lower 

 leaves twice pinnately compound; leaflets entire or divided into linear or oblong 

 divisions, 1-3 cm. long, the upper less compound or simple; umbels 10-25- 

 rayed; involucres and involucels of oblanceolate, acuminate, scarious bracts 



