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 

 Anderson. 



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

 willow under the name 5. padifolia. The name should have been 

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

 species. Besides, padiis is originally a Greek word, -aoo^. 



Trifolium stenolobum sp. no\'. 



A densely cespitose and scapose perennial. Branches of the 

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

 5-10 cm. long, finely strigose ; leaflets 3, narrowly lanceolate or 

 oblanceolate, 1.5-4 cm. long, finely strigose, very acute or acumi- 

 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. dasypliyllum but is easily distinguished 

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

 corolla. It grows at an altitude of 3600 ni, 



Colorado : La Plata Mountain, 1896, F. Tweedy, ^57 (type in 

 U. S. Nat. Herb.). 



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



10. i860 



Trifolium iicmor ale (jx&txvQ, Pittonia, 4 : 136. 1900. 



Dr. Watson referred this species to T. gymnocarpuvi, to which 

 it is nearest related, but it differs in the larger size and the many- 

 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. neinorale Greene, and the latter 

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



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