363 AN ARRANGEMENT OF THE BRITISH WILLOWS. 



flexed in tlie margin, both in the Phylicifoliff and Nigricantcs ; altlioiigh 

 ill S. Jnchrfioniana, Sm., I have seen the yoniig k-aves partially retlexed, 

 as in the Cinereee. In Vetr'w, excepting- perhaps tiie group IkipJiituhha, 

 the pednncle is, I believe, not persistent. I am afraid that *S'. laiirina 

 Ciinnot be satisfactorily distinguished from S. p//j//icifolia, L. 



ii. hicvhacefP. S. rosmorhiifolia and S. anyitslijoiia approach the 

 Vimhniles, bnt the young leaves are not reflexed in S. rosniarhiifolia, nor 

 in aS. Douiana, nor in S. mvbiqua. They have a tendency to turn black 

 in (U'ving. I have never seen British specimens of either 8. romicirini- 

 i'olia or S. ovgiifit [folia, \\ nlf. In S. amb'ujua, male, var. sjjcdhulata, tlie 

 nectary is short and somewhat cmarginate. 



iii. Daphiioidi'ce. In S. renitlosa, Forbes, tlie scale is pale, rounded, 

 fringed ; the nectary suipasses tlie base of the ovarium ; the style is rather 

 short, bnt longer tlian the thick, yellowish-green, notched stigmas ; the 

 scale has at times a brownish tinge towards the point. In IS. glauca, ISm., 

 the ovarium is short, ovate, sessile. The nectary surpasses the base of the 

 ovarium and is rather broad and blunt. Stigmas subsessile and divided. 

 The style is often short in the forms of S. ArbuHcnla. In S. glauca, Sm., 

 the leaves are entire at the margin ; the veins strongly prominent below, 

 depressed above. In S. Jrbnscnla the colour of the under side of the leaf 

 is generally a dnll green, and the stipules are small or absent. The veins 

 are often most conspicuous in the upper surface of the leaf, which pre- 

 sents a reticulated appearance to the eye. In S. Arbuscula the peduncle 

 is, 1 think, persistent. 



iv. Ghrym)ith(V. The description, leaves broad, roundish, does not 

 apply 10 S. acKtifulia, W., which in haiiit and in other respects bears so 

 little resemblance to S. latiata, L., and S. Jinstuta, L., that it ought 

 surely to be placed in a ditferent section, though I am aware that Fries 

 has sanctioned this arrangement from regard to the fructification only. 

 8. aciitifolia and S. pomeranica a])pear to bear the same relation to the 

 PrcBcoces or SessUes, that S. alba and aS". fnigilis do to the Pedunculatfe. 

 They are the arborescent species in their respective sections. In S. Janata 

 the nectary is about efpiid to the pedicel ; the scale is very broad, some- 

 what membranous in texture below, brown above ; ovary smooth ; style 

 about equal to the thick upright stigmas ; scale very villous ; the young 

 leaves are not reflexed, and the veins are prominent beneath. The leaves 

 are ciliated at the margin, and are often overspread with a cobweb-like 

 jmbescence. In S. malifolia the peduncle is, I believe, persistent, and the 

 under surface of the leaves is cinereous. <S'. lunala and *S'. mulifolia are 

 nearly related, though, as the former has sessile catkins and the latter 

 pedunculate, they cannot well be placed together. In both the stipules 

 are conspicuous. The nectary in 8. malifolia is rather thick, short, and 

 abrupt, and not equal to the smooth pedicel. The scales are very villous 

 and brown above. The style is longer than the notched and cohering 

 stigmas. 



Section 3. Cliamcelyx, Fries. The nectary in ChanKelyx, so far as I 

 have seen, is single in the usual situation, next the axis, but it is some- 

 times, though not always, cloven to the base. 



i. Myrunites, L. Catkins at the end of the terminal shoot, or from a 

 lateral shoot. Aments often in appearance like a young Larch cone. 

 Filaments, anthers, ovaries, stigmas tinged with pale blue or violet. The 

 stipules are conspicuous in the young downy shoots, and the under side 



