354 Henderson : New Plants from the Northwest 



lobes, glandular and villous : corolla slightly villous, conspicuously 

 glandular above, with tube twice the length of the lower lip ; lip 

 somewhat saccate with three deeply infolded narrow plicae slightly 

 longer than the three erect light-colored subconvolute acute or 

 obtuse lobes : style shortly exserted, with conspicuous 2-lobed 

 stigma : anterior stamens equaling the corolla. 



This plant approaches C. breviflora Gray in the unequally cleft 

 calyx and the triple pliae or folds of the lower lip of the corolla, 

 but it differs from that species in the calyx being cleft more deeply 

 posteriorly than anteriorly, in the narrower less lobed leaves, in 

 the glandular stem and inflorescence, as well as in the longer 

 crisped hairs, and in the lower lip of the corolla being concealed 

 below the anterior cleft of the calyx. From the first and last of 

 these differences, it seems to constitute a new section in Castilleia, 

 provided these characters are found to be constant. 



Among rocks, between 10,000 and 11,000 ft. elevation, Sol- 

 dier Mountain, Blaine County, July 15, 1895. No. 3388. Type 

 in the National Herbarium ; co-type in the Idaho Herbarium. 



I take pleasure in dedicating this unique species to Mr. Coville, 

 botanist of the Agricultural Department at Washington, through 

 whose instrumentality I was enabled to take the trip in 1895, and 

 to whom I am indebted for the loan of additional material for com- 



parison 



>/ Salix longifolia tenerrima 



Differs from the type in the following characters : 



A smooth shrub, 2-4 meters high, with light bark up to the 

 youngest branches : leaves shorter and narrower, 1-2 mm. wide 

 on fructiferous branches, 2-4 mm. wide on the sterile, glabrous or 

 very early glabrate : pedicels slightly longer, capsule glabrous : 

 scales glabrous save for the slightly ciliate edges. 



Shaded, rocky banks of mountain * rills gone dry in July, El- 

 more County, where the type was collected, as well as sandy 



July 12, 1895, 



bottoms, Payette River, Canyon County, Idaho, 

 and August 1, 1897. 



This beautiful bush has often been referred to Salix exigua of 

 Nuttall, but it cannot be that, as Nuttall describes his plant " foliis 



sericeis — capsulis sessilibus." 



a- t 



as he describes that species with leaves twice as wide, stipules 

 none, scales of the female catkin bearded below. Furthermore, 



