/ 



4 I 



/ 



149 ' / 



i 1 • / 



eels short, glandular-pubescent, as also sepals and fruit; fruit 



small, yellowish-brown, globose, densely clustered, hispid, pulp 

 scanty, minutely tuberculate ; seeds' few, large, insertion basilo- 



parietal. This may be a good species or a surculose form of a 

 good species. . 1 



White Mountain Willows— lY. 



By M. S. Bfjib. 



Salyx argyrocarpaXphylicifolia, F. & B. nov. hyb. Year old 

 twigs, stout, dark purple and pruinose ; leaves much as in argy- 

 rocarpa, but twice the size, equally glaucous but less silky be- 

 neath, strongly rugose-veined, the margin revohite especially 

 near the base and more coarsely undulate-crenatc; fertile aments 

 (the staminate plant has not been found) more as in phylicifolia, 

 but shorter and more leafy bracted at the base, capsule more sil- 

 very-silky, pedicel scarcely longer, style equally produced, stig- 

 mas entire, of a beautiful purplish-red, while those oi phylicifolia 

 are yellow. 



Mr. Faxon remarks of the plant as observed growing: *'The 



hybrid is of about the same hciglit ^s p/iy/icifolia^ and I have not 

 yet found it except in Tuckerman's Ravine associated with this 

 species and argyrocarpa. It is very distinct in habit, and easily 

 distinguished from either at a distance of more than one hundred 

 feet; ixoxw phylicifolia hy \t^ dull glaucous color and more up- 

 right branching ; from argyrocarpa by its being so much taller. 

 It grows in patches Wkc phylicifolia, both frequently entirely sur- 

 rounded by argyrocarpa, but I think the latter does not extend 

 to so low a level as the hybrid, and the hybrid not so low 'dsphy- 

 licifolia, ■ The youngest leaves on the growing tips of the hybrid 

 are of the same color as the older ones, whereas in phylicifolia 

 the new shoots have leaves of a reddish or brownish hue. In 

 fine, it seems like a larger argyrocarpa with aments of phylici- 

 foliar 



In looking over some old sheets of S, phylicifolia in Dr 

 Gray's herbarium, I came unexpectedly upon a single specimen 

 of this hybrid — leaves only, very much discolored, very much 

 poisoned and attached to a sheet of that thin, bluish paper which 

 marks the earhcst mounts of this herbarium. The label, in the 

 handwriting of Mr. Carey, is very interesting. First comes *' 5. 



