474 FABACEAE 



flowered; flowers ascending; calyx glabrous; tube about 4 mm. long; teeth lance- 

 olate, about 2 mm. long; corolla reddish purple or rose, nearly 2 cm. long. High 

 mountains: Mont. Colo. Utah. Mont. Alp. Jl-Au. 



22. T. Brandegei S. Wats. Leaflets from broadly obovate to elliptic, rounded 

 and short-mucronate at the apex, glabrous, 1-3 cm. long; peduncles 5-15 cm. 

 long; heads loosely flowered; calyx glabrous or sparingly hairy, usually purple; 

 tube 2 mm. long; teeth lance-subulate, 3-4 mm. long. High mountains: Colo. 

 Subalp. Alp. Jl-Au. 



23. T. Haydenii Porter. Suba caulescent; leaflets broadly obovate or sub- 

 orbicular, rather coarsely denticulate, 5-20 mm. long, glabrous; peduncles 5-15 

 cm. long, slender; flowers reflexed in age; calyx glabrous; tube fully 2 mm. long; 

 teeth subulate, 3 mm. long. Mountain meadows and wet slopes: Mont. Wyo. 

 Submont. Mont. Jl-Au. 



24. T. subacaulescens A. Gray. Leaf-blades oval or elliptic, 1-2.5 cm. 

 long, bright green and glabrous above, silky-canescent beneath; peduncles 2-5 

 cm. long, strigose; heads globose; flowers reflexed in age; calyx canescent; tube 

 2.5-3 mm. long; teeth subulate, about 2.5 mm. long; corolla purplish or salmon- 

 colored, 10-12 mm. long. T. nemorale Greene. Open pine woods: Colo. 

 N.M. Submont. My-Je. 



25. T. gymnocarpon Nutt. Leaflets oval to elliptic, glabrous above, stri- 

 gose beneath, 5-10 mm. long; peduncles 1-4 cm. long; flowers reflexed in age; 

 calyx strigose; tube about 1.5 mm. long; teeth subulate, 1.5-2 mm. long; corolla 

 ochroleucous, about 8 mm. long; pod globose, hirsute, reticulate-rugose, dehis- 

 cent. Dry hills: Mont. Colo. Utah. Submont. My-Je. 



26. T. stenolobum Rydb. Leaflets narrowly lanceolate or oblanceolate, 

 1.5-4 cm. long, finely strigose, very acute or acuminate; scape 1-1.5 dm. long; 

 calyx-tube silky-strigose, 4-5 mm. long; teeth almost filiform, 7-9 mm. long; 

 banner about is mm. long, obtuse, mucronate. Alpine peaks: Colo. Subalp. 



-Alp. Jl. 



27. T. attenuatum Greene. Leaflets narrowly linear, attenuate, 1-4 cm. 

 long, entire, with scattered hairs; peduncles 5-7 cm. long, sparingly strigose; 

 calyx sparingly villous; tube 2.5-3 mm. long; teeth subulate, 2-3 mm. long; 

 corolla reddish purple, 15-18 mm. long. High mountains: Colo. Alp. Au. 



28. T. bracteolatum Rydb. Leaflets bright green, elliptic or lanceolate- 

 oblong, acute at each end, 1-2.5 cm. long, strigose; peduncle 5-12 cm. long; 

 calyx densely strigose; tube 3 mm. long; teeth subulate-filiform, 4-6 mm. long; 

 corolla pale rose-purple or lilac, in age turning light brownish, about 1 cm. long. 

 T. lilacinum Rydb., not Greene. T. petraeum Greene. High mountains: Colo. 

 Subalp. Alp. Jl. 



29. T. anemophilum Greene. Leaflets linear-oblanceolate, 1-2 cm. long, 

 entire, acuminate ; peduncles 1-3 cm. long; bracts short, 35 mm. long, lanceolate 

 or ovate, acuminate or 3-dentate at the apex; calyx canescent; tube 2 mm. long; 

 teeth subulate, about 4 mm. long; corolla reddish purple, about 15 mm. long. 

 Dry rocky hillsides: Wyo. Submont. My-Je. 



30. T. lividum Rydb. Leaflets linear-lanceolate or oblanceolate, very 

 acute at both ends or cuspidate at the apex, 3-4 cm. long, glabrous above, spar- 

 ingly appressed-hairy beneath; peduncles 1-1.5 dm. high; bracts linear-subulate 

 to almost filiform; calyx-tube 2.5-3 cm. long; teeth subulate-filiform, 4-5 mm. 

 long; corolla about 12 mm. long, light purple, with a darker keel. High peaks: 

 Colo. Wyo. Subalp. Alp. Jl-Au. 



31. T. dasyphyllum Torr. Leaflets linear-oblong, acuminate or attenuate 

 at both ends, 1-3 cm. long; peduncles 2-10 cm. long; bracts linear-lanceolate, 

 more or less scarious-margined ; calyx loosely pubescent; tube 3 mm. long; teeth 

 subulate, about 6 mm. long; corolla 12-15 mm. long. High mountains: Colo. 

 Submont. Alp. Je-Au. 



32. T. scariosum A. Nels. Leaflets narrowly linear-oblong, short-acumin- 

 ate at both ends, 1.5-2.5 cm. long; peduncles 4-6 cm. long; bracts linear-lance- 



