CATALOGUE. 241 



leaves of the short peduncle; scales obovate, black, villous with while hairs; 

 capsules conic-rostrate, glabrous; pedicels about twice the length of the 

 nectary ; style medium-sized, pale, stigmas entire, erect. South Park, 

 Colorado (825) ; also Georgetown (826 in part). Differs from S. cordata in 

 the more compact aments, subsessile capsules, and leaves green on both 

 sides and slightly crenate — not glandular-serrate. Apparently a common 

 willow in the Rocky Mountains of Colorado, having been collected there 

 by Hall, Greene, Porter, Patterson, Brandegee, and others. Under the 

 inappropriate name of S. Nova Anglice (for British American), Professor 

 Andersson has arranged a series of forms, intermediate, as it were, between 

 our S. cordata and S. Myrsinites of Northern and Arctic Europe and Asia, 

 probably including several good species, which, with better material, may 

 hereafter be separated. 



Salix desertorum, Richardson (DC. Prod. 16', 2, 281; Porter, Fl. Col. 

 128). — Leaves narrowly oblong, rigid, more or less whitish-tomentose 



beneath; aments very short, subglobose, densely flowered; scales pale 

 rose-color, densely white villous; capsules ovate-conical, white-woolly, 

 sessile; style 2-parted, brown. A low, scraggy, much branched shrub, 

 rising to the height of two or three feet, or even more, when it descends 

 into the valleys. — South Park, Colorado, June (819, 829). To this species 

 should be referred Hall & Harbour's No. 523 (very similar to Drummond's 

 No. 657) and most of the so-called S. glauca of the Colorado Mountains. 



Salix Wolfii, Bebb, sp. nov. — Leaves oblanceolate, or the lower 

 narrowly oblong, acute, entire, silky when young, with a tendency to 

 blacken in drying, at length smooth, rigid, and green on both sides ; 

 stipules none ; aments small, subglobose (less than £' long), densely 

 flowered, scarcely peduncled, with 3-4 bracts at base, which exceed in 

 length the mature, fertile ament; scales obtuse, black, very sparingly villous ; 

 capsules conical, from an ovate base, pointed, glabrous, subsessile, greenish 

 or dull red ; pedicels barely equalling the gland ; style slender, greenish 

 or dull ; stigmas small, bifid or entire. — South Park, Colorado (820, 824, 

 828 ; also collected by Dr. Parry on Wind River, 263, in Captain Jones's 

 Wyoming Expedition, 1873). Resembles the foregoing in habit and in 

 the form of the leaves and aments, but distinguished by the perfectly 

 16 BOT 



