392 DB. F. BUCHANAN WHITE'S 



silky pubescence characteristic of its tribe*. Received from Mr. 

 Darwell, to whom it was sent by the late Mr. Forbes," certainly 

 belong to Salix Arbuscula, L. Sal. Wob. t. 81 is, as regards the 

 <3 plant, in agreement with Leefe's specimens ; but the $ plant 

 figured is doubtful, and is more like S. repens. Sal. Wob. t. 80 

 (S. adscendens, Sm.) is also probably S. Arbuscula, L. The Eng. 

 JSot. figures, however, represent S. repens. 



Under S. repens must be placed, in the meantime at least, a 

 willow in Mr. F. J. Hanbnry's " Boswell herbarium " labelled 

 14 Salixfusca, Mullaghmore, Co. Sligo, J. B. Syme, 1840." The 

 specimens are old and not in first-rate condition. The leaves are 

 elliptic in shape, and hence not dissimilar to some forms of repens, 

 but of a rather paler green and, almost from the first, glabrous 

 both above and below, though some of the young leaves are 

 densely silky and all are more or less ciliate on the entire margin* 

 The catkins (?) have leafy peduncles (whose leaves have buds in 

 their axils) from £ to 1 inch in length ; the capsules are moderately 

 hairy, pedicellate, acute, with (compared with ordinary repens) 

 remarkably long and slender styles. The specimens much resemble 

 Wimmer's specimens {Coll. No. 254) of S. repens-myrtilloides, 

 Wimm. (S. Aurora, Laestad., S.jinmarchica, "Willd.), though not 

 identical with them. Koch makes S.finmarchica^iW^y a variety 

 (e . Jinmarchica) of & repens, with glabrous leaves, the young ones 

 silky, and glabrous capsules. It is much to be desired that this 

 plant could be rediscovered, as it deserves further study. 







X Salix ambigita, JShrh. (S. repens X S. aurita.) 



S. ambigua, beyond doubt a hybrid of S. repens with S. aurita, 

 is, according to Wimmer, the most frequent of all the hybrid 

 willows. 



In Eng. Hot. (3rd ed.) four varieties are enumerated, viz. : 

 a. genuina, /3. major, y. spathulata (Willd.), and i. undulata. 

 Wimmer mentions two forms (in addition to the more typical 

 state), /3. microphylla and y. longifolia ; and Andersson gives two 

 modifications, 1. S. spathulata, Willd. (more related to S. aurita), 

 and 2. S.plicata, Fr. (nearer S. repens). By Wimmer S. spathu- 

 lata, Willd., is considered to be a synonym of S. aurita. 



Although, perhaps, most usually pubescent, S. repens is not invariably so. 

 I have found plants quite destitute of pubescence, but which, under cultivation, 



became more or less hairy. 





















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