Ball — Notes on Some Western Willoivs. 89 



Parry, 541, Rocky Mt. FJ., 1861.— Parry, S. glaucGVSir., Colo., 1864.— 

 Baker, Earle, and Tracy, 56>0i and 570, S. desertorum, 1898. — Pammel, 

 221, PI. No. Colo., 1896.— Reppert, 5, 1898 (in herb.)- 



Baker Nos, 11, 12, and 13, PI. No. Colo., are three similar 

 and peculiar speciaiens. The leaves are small, 1-1^ in., but 

 in shape, texture and vesture they resemble those of the var. 

 villosa rather than those of the common form. 



S. GLAUCA var. villosa Anders. 



S. glauca var. villosa Anders., Sal. Bor.-Am. 68 (22). 1858. — Bebb in 

 Bot. Calif. 2 : 89. 1880. — Bebb in Coult., Man. Rocky Mt. Bot. 338. 1885 (in 

 the larger dimensions only). 



S. villosa (?) Don., Hooker, Fl. Bor.-Am. 2 : 144. 1840 (1839). 



S. glaucops Anders, in DC. Prod. IG^ :281. 1868. 



Full discussion must be deferred until more abundant 

 material is accessible. I have already stated that, while the 

 Rocky Mt. form was included under this variety by Mr. Bebb, 

 they are, nevertheless, very distinct. 



Hansen's iVb. SOO, Fl. Sequoia Reg., 1892, is a plant which 

 nearly answers the original description. Except for the 

 absence of serratures and glands it bears a strong resemblance 

 to a narrow-leaved S. Californica Bebb, to which it is, of 

 course, closely related. 



S. ARCTiCA R. Br. var. petraea. 



8. arctica R. Br. yar. petraea Anderss., Bebb in Coult., Man. Rocky Mt. 

 Bot. 338. 1885.— S. arctica R. Br. of Watson in King, Surv. 40th Par. 5 : 326. 

 1871. — iS. arctica Pallas (of Andersson) yslt. petraea Anderss. in DC. Prod. 

 16»:228. 1868.— Bebb in Bot. Calif. 2:90. 1880. 



S. phlebophylla Anders. ? (but not of the Sal. Bor.-Am. nor in DC. 



Prod.).— Watson in King, Surr. 40th Par. 5: 326. 1871. 



S. tenera Anders, in DC. Prod. 16^ : 288. 1868 (a narrow leaved form). 



S. Brownii Bebb, (not S. Brownei, Anderss., Lundstr.) var. petraea (An- 

 derss.) Bebb, Bot. Gaz. 16: 107. 1891. 



The methods by which Prof. Andersson succeeded in 

 greatly augmenting the then existing confusion in regard to 

 S. arctica R. Br. and S. arctica Pallas have been exposed by 

 Mr. Bebb (Bot. Gaz. 14:115-117. 1889). The vigor and 

 conciseness of his language render the accusation almost 

 dramatic. But great as was the service he rendered 

 and good as his intentions undoubtedly were, it seems 

 that he only added to the burden of synonymy 



