1920] SCHNEIDER, NOTES ON AMERICAN WILLOWS. IX 



191 (1879). — S. squamata Rydberg in Britton, Man. 317 (1901); in Brit- 

 ton & Brown, 111. Fl. ed. 2, i. 600 (1913). 



The type of the widely spread eastern " Pussy Willow " has been well 

 described by Muhlenberg and Willdenow, and also, in 1867, by Anderssoa 

 as S. discolor virescens. It comprises the forms in which the branchlets are 

 pubescent only when young, and the mature leaves become quite glabrous. 

 The leaves are said to be " ovato-lanceolata utrinque acuta " by the author, 

 or according to Willdenow who prepared the short diagnoses in Muhlen- 

 berg 



The leaf figured on the plate seems 

 be only a half grown one. The type came from Lancaster, Pa. 

 This species was apparently first described by Wangenheim as S. conifera 

 who probably confused the two species S. humilis and S. discolor. Tlie pu- 

 bescence of the leaves points to S. humilis, the habit to S. discolor. The fig- 

 ure given by Wangenheim is very badly drawn, and the name conifera 

 refers to the galls which frequently are found on both species as well as on 

 other Willows. Therefore it seems best to abandon entirely Wangenheim's 

 name unless there can be found a type specimen which clearly proves the 



identity of his plant. 



Michaux' S. eriocephala of 1803 the type of which came from Illinois 

 represents the form with more or less persistently tomentose branchlets 

 (" ramulis minutim tomentosis "), I shall say more of it later in dealing 



with Andersson's forms. 



Pursh, in 1814, besides S. discolor described a S. prinoides. According to 

 his statements it differs in its narrower more acute leaves, longer pedicels 

 and longer styles. It is, however, almost impossible to judge from his 

 description which form he had in mind. In Herb. Kew there is a specimen 

 named prinoides by Borrer from Hort. G. Andersson of which a sketch is in 

 Herb. G. It looks to me like typical S. discolor. 



Barratt's varieties of 1810, gracilis, ohovata, minima, and attenuata, are 

 nomina nuda. I have only seen the type of f . ohovata, which is nothing but 

 S. discolor typica. The types of the other forms seem to be in Herb. Kew, 

 and there are some sketches of them in Herb. G. Besides S. discolor Barratt 

 mentions S. conformis Forbes. The native country of this form is not 

 known; it may be a narrow leaved form of S. discolor identical with S. 

 prinoides Pursh. The plant figured by Forbes (t. 410) as S. prinoides is the 

 same form that Rydberg recently has described as S. squamata; it is nothing 

 but a late flowering state of typical S. discolor, an opinion also held by 



Britton & Brown in 1913. 



Of Barratt's no. " 6. Salix eriocephala Michaux? " I have seen two speci- 

 mens which are identical with var. eriocephala sensu Fcrnald (see later). 

 Barratt also described a S. crassa of which I have seen the type. It, too, is 

 eriocephala, and Carey in 1847 already made S. crassa a synonym of 

 eriocephala. Barratt's S. sensitiva is, in my opinion, typical S. discolor or 

 the same form which Pursh calls S. prinoides. Carey has put it with a ques- 

 tion mark as a synonym of 8. discolor. 



The form which Carey took for S. eriocephala is uncertain to ms. He said : 



