Studies on the Rocky Mountain Flora.— VI 



By P. A. Rydberg 



^Salix padophylla n. n. 



5. padifolia Rydb. Bull. Torr. Club, 28: 272. 1901. Not 



very 



Anderson. 



In the May number of the Bulletin appeared a new species of 



* 



willow under the name S. padifolia. The name should have been 

 S. padophylla, as 5. padifolia is preoccupied by one of Anderson's 

 species. Besides, padiis is originally a Greek word, naoo;. 



/ Trifolium stenolobum sp. nov. 



A densely cespitose and scapose perennial. Branches of the 

 caudex covered by the large stipules which are 2 cm. long ; petioles 

 5-io cm. long, finely strigose ; leaflets 3, narrowly lanceolate or 

 oblanceolate, 1.5-4 cm. long, finely strigose, 



nate : scape 1-1.5 dm. long : heads many -flowered ; bracts minute ; 

 flowers reflexed in fruit : calyx-tube silky-strigose, 4-5 mm. long ; 

 teeth almost filiform, 7-9 mm. long: banner about 18 mm. long, 



obtuse, mucronate. 



This is related to T. dasyphyllum but is easily distinguished 

 by the minute bracts, the long slender calyx -teeth and the larger 

 corolla. It grows at an altitude of 3600 m. 



Colorado : La Plata Mountain, 1896, F. Ttveedy, 457 (type in 

 U. S. Nat. Herb.). 



Trifolium subcaulescexs A. Gray, Ives, Rep. Colo. Riv. Bot. 



10. i860 

 Trifoliam nanorale Greene, Pittonia, 4: 136. 1900. 



ninocarpiun 



& 



flowered head. The specimen of C. F. Baker's no. 446 in the 

 herbarium of the New York Botanical Garden matches perfectly 

 Newberry's specimen in the Columbia University herbarium. The 

 former is the type number of T. ncmorale Greene, and the latter 

 that of T. subcaidescens A. Gray. Unless the type sheets repre- 



499 



