290 RANUNCULACEAE 



7. T. occidentale A. Gray. Stem 3-10 dm. high; leaves 3-4 times ternate; 

 leaflets very thin, orbicular to obovate-cuneate, 3-lobed and coarsely crenate, 

 1-3 cm. long; filaments filiform; achenes lanceolate, tapering at both ends, 6-8 

 mm. long, 1.5-2 mm. wide. Woods and copses: B.C. Calif. 'Utah. Alta, 

 Submont. Mont. Je-Au. 



8. T. megacarpum Torr. Plant closely resembling the preceding; stem 

 3-8 dm. high; leaves 3-4 times ternate; leaflets thin, pale beneath; filaments 

 filiform; achenes lance-oblong, acute at both ends, 6-7 mm. long, 2.5-3.5 mm. 

 wide, with more prominent ribs than in the preceding. T. propinquum and T. 

 omissum Greene. Copses, woods and river banks: Ida. Utah -Colo. -Mont. 

 Submont. -Mont. My-Au. 



9. T. columbianum Rydb. Stem 3-5 dm. high; leaves 3-4 times ternate; 

 leaflets rather crowded, thick and veiny, 1-2 cm. long, cuneate to nearly or- 

 bicular, 3-lobed and deeply toothed; inflorescence narrow; achenes oblong- or 

 ovate-lanceolate, somewhat flattened, 4-5 mm. long, 1.5-2 mm. wide. Meadows: 

 Wash. Ore. Wyo. Ida. Submont. -Mont. Jl-Au. 



10. T. Fendleri A. Gray. Stem 3-6 dm. high; leaves 3-4 times ternate, 

 glabrous; leaflets obliquely orbicular or subcordate, pale beneath, 1-2 cm. long, 

 3-lobed and crenate; inflorescence open and leafy; filaments filiform; achenes 

 obliquely obovate, 3-ribbed, with the median rib strong. Mountains: Wyo. 

 N.M. Ariz. Utah. Submont. Mont. Je-Au. 



11. T. stipitatum Rydb. Stem 4-6 dm. high, glabrous, leafy; leaves 3-4 

 times ternate, glabrous, paler beneath, all except the very uppermost petioled; 

 leaflets 1-2 cm. long, orbicular, with a rounded or subcordate base, 3-lobed and 

 crenate; inflorescence leafy and open; achenes short-stipitate, the body broadly 

 and obliquely oblong-lanceolate, about 6 mm. long, 2.5-3 mm. broad, flat with 

 slender ribs. Woods: c Colo. Mont. Jl. 



4. TRAUTVETTERIA F. & M. FALSE BUGBANE. 



Perennial herbs, with horizontal rootstocks and tall stems. Leaves mainly 

 basal, palmately lobed, long-petioled. Flowers perfect, corymbose-paniculate. 

 Sepals 3-5, petaloid, greenish white, caducous. Petals wanting. Stamens 

 numerous, with white filaments. Pistils numerous, 1-ovuled. Achenes sharply 

 angled, inflated, tipped with a minute style; stigma introrse. Embryo large; 

 endosperm fleshy. 



Styles in fruit about one-third as long as the body of the achenes; filaments broader than 

 the anthers. 1. T. grandis. 



Styles in fruit less than one-fourth as long as the body of the achenes; filaments not 

 broader than the anthers. 2. T. media. 



1. T. grandis Nutt. Stem 3-10 dm. high, glabrous up to the inflorescence; 

 leaf-blades reniform in outline, 1-2 dm. wide, palmately 7-9-lobed and irregu- 

 larly serrate; filaments clavate, 5-6 mm. long; achenes ovoid, rounded at the 

 base, 3 mm. long. T. saniculifolia Greene. Woods: B.C. Mont. Calif. 

 Mont. Je-Au. 



2. T. media Greene. Stem 5-10 dm. high, glabrous; leaf -blades reniform, 

 5-9-cleft; the divisions often again lobed and irregularly toothed; filaments 

 slightly clavate, about 5 mm. long; achenes fully 3 mm. long, less rounded at the 

 base. Mountain woods: N.M. s Utah. Mont. Jl-Au. 



5. CLEMATIS L. VIRGIN'S BOWER, WHITE CLEMATIS, 

 TRAVELER'S JOY, PIPE-STEM. 



Climbing vines. Leaves opposite, pinnately compound or decompound, 

 with entire, toothed, or incised leaflets. Flowers in broad, paniculate cymes or 

 rarely solitary, perfect, dioecious, or polygamo-dioecious. Sepals rather small, 

 petaloid, usually white, valvate, without a border, spreading. Petals and 

 staminodia wanting. Stamens numerous, spreading; anthers short and blunt. 

 Pistils several or many. Fruit of 1-seeded achenes, with silky or plumose, 

 elongate styles. 



