420 Rydberg : Rocky Mountain flora 



Homalobus strigulosus sp. nov. 



Cespitose perennial ; stems erect or ascending, branched, 1-3 

 dm. high, strigulose ; stipules short, ovate ; leaves 3—4 cm. long ; 

 leaflets linear, acute, 8—12 mm. long, 1—2 mm. wide, thick, glabrous 

 above, strigose beneath ; peduncles i cm. or less ; raceme lax, 

 1.5—3 cn^- io"?> 4— 7-flowered ; bracts minute, subulate; calyx stri- 

 gulose ; tube campanulate, 1.5 mm. long ; teeth subulate, less than 

 I mm. long ; corolla ochroleucous, about 6 mm. long ; pod strigose, 

 shining, stipitate ; body oblong, 7—8 mm. long, 3 mm. wide, rather 

 gradually contracted into the stipe, which is about 3 mm. long. 



This is closely related to H. tcnclliis, but differs in the smaller 

 flowers and the smaller and hairy pod. It grows at an altitude 

 from 1800-3000 m. 



Nevada: East Humboldt Mountains, i860, 5. Watson 28J 

 (type). 



Utah : P. V. Junction, Wasatch Mountains, 1883, M. E. Jones 

 (mixed with H. tciicllus). 



Diholcos micranthus sp. nov. 



Somewhat cespitose perennial ; stems erect or ascending, 

 sparingly strigose or glabrate, 2—4 dm. high ; stipules ovate, about 

 5 mm. long ; leaves 4—6 cm. long ; leaflets 17—25, linear or lance- 

 oblong, acute at both ends, 7—20 mm. long, glabrous above, stri- 

 gose beneath ; peduncles 4—7 cm. long ; racemes many-flowered, 

 3—7 cm. long ; calyx strigose ; tube campanulate, slightly gibbous, 

 2—2.5 mm. long; teeth subulate-filiform, 1—2 mm. long, the upper 

 somewhat shorter ; corolla G-y mm. long, ochroleucous ; pod stri- 

 gose, obsoletely if at all cross-ribbed ; stipe 3—4 mm. long ; body 

 scarcely i cm. long, 3 mm. wide, very acute. 



This species is related to D. Haydcnianus (A. Gray) Rydb. 

 \^Astragahis Haydcnianus A. Gray], differing in the smaller 

 flowers and fruit, the more acute leaflets, the narrower calyx-lobes, 

 and especially the almost total lack of cross-ribs on the more 

 acute legumes. D. viicrantlnis was included in D. Haydcnianus 

 in my Flora of Colorado. 



Colorado: La Veta, i8g6, C. L. Shear ^§6 g (type); Gun- 

 nison, 1896, Clements 100 ; Ridgeway, 1895, Tzucedy 228 ; Rio 

 Blanco, south of Pagosa, 1883, B. H. Smith. 



Kentrophyta minima sp. nov. 



Perennial with a woody root and cespitose caudex, forming 

 cushions i dm. in diameter ; herbaceous stems 1—2 cm. high ; 



