MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. II5 



It is evidently as good a species as any, differing from S. dcser- 

 torwn in the larger glabrous capsules, the dark narrow bracts, the 

 larger and more acute leaves, and the notched stigma. In alpine 

 bogs, at an altitude of 2000-3000 m. 



Yellowstone Park: 1886, Tzuccdy, 4.S1; 1884, jj. 



* Salix Dodgeana Rydberg, Bull. N. Y. Bot. Gard. i : 277. 



A delicate suffruticose little plant, scarcely more than 2 cm. high 

 above ground. Stems slender but short, mostly subterranean, with 

 brown bark ; shoots, at least when young, with yellowish green bark, 

 densely covered with leaves, the whole plant perfecdy glabrous ex- 

 cept the margins of the bracts; leaves 4-5 mm. long, oblong or 

 oval, acutish or obtuse, light green, strongly veined ; pistillate cat- 

 kins generally 2-flowered, bracts oblong, truncate, sparingly villous- 

 ciliate ; capsule oblong-ovoid, glabrous, with two sessile 2-cleft stig- 

 mas ; staminate catkins generally 3-4-flowered ; stamens 2 with 

 slender glabrous filaments more than twice as long as the bracts, and 

 short anthers. 



This is nearest related to S. rottindifolia^ which, however, has 

 nearly orbicular often emarginate leaves and more strongly ciliate 

 obovate bracts. S. Dodgra)ia is, as far as know^n, the smallest willow 

 in existence. | } At the original locality it w^as found covering whole 

 acres of ground, growing on the mountain side at an altitude of 

 3200 m. Mr. Tweedy collected his specimens at about the same alti- 

 tude. It was dedicated to Mr. William E. Dodge, of New York 

 City, a friend and pairon of botany. 



Yellowstone Park: Electric Peak, Aug. 18, 1897, Rydberg & 

 JBessey, 3<p2i. 



Wyoming : Sheep ]Mountain, Teton Forest Reserve, 1897, 

 Tzi'ccdy, 2g2. 



Populus deltoides occidentalis ; Popnlusangalata Coulter, Man. R. 



M. 339, in part. 



Leaves more acuminate than in the type, with a broader base, and 

 more coarsely toothed. Along rivers, up to an altitude of 1500 m. Dr. 

 Trelease had given this variety a manuscript name, which, however, 

 can not be used, being a homonym of an already published species. 



Montana: Missoula, 1882, T'zi'i'd'^v, Jc^p; Upper Missouri, /. S. 

 JVezt'bc7'ry. 



*Populus balsamifera L. Sp. PI. 2: 1034 \}^^- ^1- i : 491]- 



The variety candicans, with heart-shaped leaf base, I have not 

 seen from Montana, but rather the species. It grows together with 

 P. an gust {folia, into w^hich it sometimes grades. 



