106 The Botanical Gazette. [April, 



near Donner Pass" by Dr. Torrey, as a variety of S. Sifckensis. 



Similar forms occur from British America southward to Utah 

 and California — mostly in the Rocky Mountains, all seeming 

 to belong to one species for which 5. pellita Anders, is the 

 oldest name; unless this is found to be anticipated by the 

 still older and very obscure 5. Drummondiana Barratt. 

 Furthermore the very interesting question whether this is a 

 mountain equivalent of the coast SitcJunsis remains to be 

 demonstrated when we know the staminate aments. Why 

 these have eluded so many collectors is a mystery! Drum- 



mond's specimens are without staminate flowers to begin with 



and although in recent years some of our best collectors in 

 the West have, at my request, endeavored to secure speci- 

 mens which would complete our knowledge of the species, 

 their efforts have been, thus far, of no avail. 



12. S. LEMMONI Bebb. — This appeared abundantly, and 

 in great diversity of form in Mr. Lemmon's collections, but 

 has not been further made known as a Californian plant. It 

 has been found since, however, by Mr. Cusick in the mountains 

 of eastern Oregon at an altitude of 4,000 feet. 



13. S. AUSTINS Bebb. — This must be held in abeyance. 

 The leaves described belong to S. Lemmoni, and in some 

 (though not all) of the specimens staminate aments of 5. las- 

 lolepis were intermixed. There yet remain the fertile aments 

 not identifiable with any willow of the Pacific Coast region as 

 at present understood. Leaves to match these will, I* appre- 

 hend, be found to be of the phylicifolia type and the emended 

 species, I hope, may continue to bear the name; but how longs 

 shall we have to wait for the painstaking local observer who 



will collect flowers and fruit, and finally foliage from the same 

 plant ? 



14. S. Brfaveri Bebb. — Beyond all comparison this is the 

 rarest and most obscure of North American willows. Only 

 in a remote degree related to any species of the region in which 

 it was found, in fact representing a group otherwise unknown 

 throughout the length and breadth of the Western Continent, 

 found but once and after the lapse of more than ten years still 

 known only from that one meager collection — surely we have 

 presented here every indication of a species verging close on 

 extinction. 



16. S. CAUFORxiCABebb.— In the first paper of this series 

 mention was made of a group of willows, intermediate as it 



