1919] SCHNEIDER— AMERICAN WILLOWS 339 



For. Trees Calif. Slope 222. fig. gi. 1908, pro parte.— Of this 

 variety Rowlee has given a very incomplete description, and in 

 citing the specimens he says ''Bolander, nos. 49, 58, 4958, 5031." 

 There are no nos. 49 and 58 of Bolander, but only no. 4958, which 

 has to be taken for the type. No. 5031 is also cited by Rowlee 

 under S. exigua var. virens, of which I previously have spoken, and 

 again under S. argophylla as a number of Brewer, who, so far as I 

 know, never collected a specimen bearing the same number at the 

 same locality from which Bolander's plant came. 



This variety differs from the tjq^e chiefly by the characters 

 indicated in the key. Rowlee's statement in his key that in S. 

 melanopsis the leaves are ''distinctly glaucous and prominently 

 veiny beneath" while they are "not distinctly glaucous nor veiny 

 beneath" in S. Bolanderiana is not correct. The leaves are some- 

 times rather greenish beneath in both forms. The t>'pical form of 

 var. Bolanderiana is somewhat pubescent, while most of the speci- 

 mens before me belong to a glabrous form. There can also be 

 observed a slight variation with partly hairy ovaries and fruits in 

 the specimens of /. Burtt Davy (no. 5691, from Hoopa Valley, 

 Humboldt County, California) and 5. Watson (no. 1092, Truckee 

 Valley, Washoe County, Nevada). Both need further observation, 

 and may represent hybrids with S. exigua. This seems also the 

 case with A. A. Heller's no. 6953 (along Coldstream, 3 miles above 

 Truckee, July 17, 1908). On the other hand, specimens collected 

 at Sunol Valley, Alameda County, June 29, 191 6, by L. R. Abrams 

 (no. 5692, no. 5693, f.; St.), of which the male plant cannot be 

 distinguished from typical var. Bolanderiana, possess ovaries and 

 fruits which are hairy throughout or become glabrous only to a 

 slight degree. They do not look like hybrids, and seem to repre- 

 sent a distinct form with pubescent ovaries and rather silky 

 tomentose young leaves. 



The typical S. Bolanderiana has rather broad leaves, but there 

 are before me many very narrow leaved specimens, and further 

 observation in the field must show whether the forms with linear- 

 lanceolate leaves can be separated from the typical form. I do 

 not wish to propose too many new varieties and forms which are 

 only known to me from herbarium specimens, but I beheve that a 



