CONTRIBUTIONS TO WESTERN BOTANY. 679 



long as the leaves, rarely more, often less, 4-6 flowered; 

 flowers 9" long, dirty purple or white; calyx lobes subu- 

 late-triangular, the lower about equaling the tube which 

 is ih" long; fruit half-elliptical, 2' long; whole plant 

 smooth, plants straggling upwards from 3-6° high, among 

 oak brush. This plant which is very common through- 

 out Utah at middle elevations varies but little. I refer 

 here also Miss Eastwood's specimen. No. i, from Du- 

 rango, Colorado, and Ward's specimen from Utah col- 

 lected in 1875. Z,. pauci-fiorus may be a starved form of 

 this species, but from the imperfect material of that species 

 it is impossible to tell what its limits are. 



POTENTILLA UtAHENSIS var. CAMPESTRIS. 



Ivesia Utahensis var. campestris . 



No. 1624. Whitney Meadows, Sierra Nevada Moun- 

 tains, California, 8500° alt., August 19. Coville. 



Young leaves silky, long-villous; narrow leaflets 2|" 

 long or less; plants less glandular, but otherwise the 

 same, though a little more slender and leaflets not com- 

 pacted. 



Amelanchier alnifolia var. Utahensis (Koehne, 

 Die Gattungen der Pomaceen. Berlin, Ostern, 32, t. 2, 

 1890). 



No. 5204d. May 10, 1894, Cedar City, Utah, in gravel, 

 6000° alt. 



No. 5224n. May 15, 1894, Rockville, Utah, in red 

 sand, at 3500 alt. 



No. 5286k. May 22, 1894, Kanab, Utah, 5300° alt., 

 on sandstone rocks. 



No. 51491- Ma}'' 3, 1894, Silver Reef, Utah, on slopes, 

 3500° alt. 



A large number of specimens from different localities 

 and elevations show all sorts of variations in this most 

 variable species, the variations being due to aridity and 



