1920] SCHNEIDER, NOTES ON AMERICAN WILLOWS. VII 159 



also S. Candida, S. glauca, S. Scouleriana and S. rosirata [S. Bcbbiana]), and 

 this fact proves that neitlier Barratt nor Hooker made an attempt to sepa- 

 rate these forms according to their true relationship. Salix adenophylla 

 does not, in my opinion, belong? to the Cordatae, but its closest connection 

 is with S. commutata and S. Eastwoodiae. Fernald lays too much stress 

 upon Hooker's characterization of the serrature of the leaves: he says: 

 " This remarkable character of the foliage is sufficient, even if the habitat, 

 Labrador, were not almost convincing, to show that Hooker's plant could 

 not have been the same as the common sand dune shrub of the Great 

 Lakes." I see, however, no reason why Hooker's description should not 

 apply exactly to S. syrticola, which also undoubtedly is characterized by 

 " foliis ovatis basi cordatis acutis . . . argute serratis serraturise elongatis 

 glanduliferis . . . stipulis ovato-cordatis grosse glanduloso-serratis." Fer- 

 nald emphasizes the fact that S. syrticola has larger leaves of which even the 

 smallest are 3 cm. long while Hooker's type according to Andersson has only 

 " folia majora ad pollicem longa." But Hooker himself states that the 

 " leaves arc an inch or more long." In fact, on the type they measure up to 

 1 inch and a half in length, and they were probably not fully grown. On the 

 other hand I have seen several forms of *S. syrticola which in no way could 

 be distinguished from Hooker's type. The fruiting aments of lliis type are 

 (without the peduncle) only 3.5 cm. long, but apparently not very well de- 

 veloped. The bracts of the old fruits of the fragments which I have seen 

 are partly rather densely pubescent and not only " pilis raris adspersae " or 

 " glabriusculae " as Andersson says. His statement" pedicello cinerco " is 

 reirarded bv Fernald as another character to separate S. adenophylla and S. 

 syrticola, because the latter has a glabrous and straw-colored pedicel. In 

 my opinion, Andersson did not intend to say that the pedicel is pilose })ut 

 he evidently used the word cinereus only in the sense of " grayish." When 

 Fernald proposed his new species he did not know of the specimens collected 

 by Macoun, Ross and Sprcadborough in the James Bay region. They con- 

 nect the original habitat of (probably southern) Labrador with that of S. 

 syrticola. The only difference between the forms of James Bay and those 

 of the Great Lakes, so far as I can judge, is in the length of the styles, which 

 mostly measure about 1.5 mm. in typical S. adenophylla, while they rarely 

 are longer than 1 mm. in S. syrticola. We need, however, more copious 

 material to decitle whether this is a constant character sufficient to separate 

 the form of the Great Lakes as a variety. I have seen tlie following speci- 

 mens which undoubtedly represent typical S. adenophylla. 



Keewatin. Gravdly bank i)f Severn River, July 30, 1885, ./. M. Macoun (Xo. 

 2004, O.. fr. adult.) — Ontario. Hudson Bay, Cape Henrietta Maria, August 14, 

 1904, W. SpreaJborougk (No. G2G31, O., fr. adult.); The Beacon, mouth of Moose 

 River, Julv 11), 1904. same coll. (02030, O., fr. adult.). — N. E. Territory. East 

 Main 189-2, A. II. D. Boss (No. 2438, O., st.; fragment). — Labkauor, without 

 exact locality. Dr. Morrison (fr.; K.; type).— Quebec: Sagueuay District: Na- 

 tashquan River, July 24, to August 10, 1912, C. W. Townsend (fr.: G.). Lake 

 St. John District: Roberval, shore of Lake St. John, August 22, 1895, J. G. 

 Jack (st.; A.). 



