













BEVISIOtf OF THE BRITISH WILLOWS. 



335 











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From this statement it will be seen how great the range of 

 opinion has been during the present century, the estimated 

 number of " species " varying from 70 in 1838 to 18 in 1884 ! 



But though since 1838 so many names have disappeared as 

 the names of species, many of them are not only still retained 

 in our lists as those of varieties, but have been added to ; so that 

 m the last edition of the l London Catalogue ' there are no less 

 than 96 named willow-forms included under 31 species. 



The object, therefore, of this Revision is in the first place to con- 

 sider how many of these names deserve retention ; and in the 

 second to point out the occurrence in Britain of some hitherto 

 unrecorded hybrids. 



In 



rry 



Andersson. 



that I have had occasionally to criticise the work — either the 

 descriptions or the determinations of specimens — of some of the 

 great salicologists ; and I wish to state, though I daresay it is 

 unnecessary, that such has been done in no carping spirit. 



For the sake of brevity, I have not cited at length under each 

 species the works chiefly consulted, but have referred to them 

 simply by the names of the authors. The abbreviations thus 

 used are as follow : 



(N. J.[Anders?on, ' Monographia Salicum,' 1867.) 

 tt work, which, with Wimmer's ' Salices/ is of the 

 utmost importance to the student of Willows, the first part only 

 ^as published. The remaining species, as well as some rather 

 later views of the author, are given in De Candolle's * Prodromus,' 

 pt. xvi. section 2, 1868 ; and for all species after and inclusive of 

 the Viminales the citation "Andersson" refers to the ' Prodromus.' 

 Other works of the same author which have been consulted are 

 the 'Salices Lapponiae,' the genus Salts in Blytt's 'Norges 

 Flora/ pt. ii. 1874; and the notes made on Leefe's ' Salictum 

 Britannicum,' and communicated by H. C. Watson to the 



botanical Gazette/ May 1851. 

 Babingtou. (Professor C. C. Babington, ' Manual 

 Botany,' 8th ed., 1881.) 

 Boswell-Syme. (J. Boswell-Syme, ' 



1873.) 

 Forb 



English Botany,' 3rd ed., 



ea. (James Forbes, 'Salictum Woburnense/ 1829.)* 













p or a large number of living sptcimens (from plants cultivated at Kew 

 aild P ro bably originally derived from the Woburu collection), illustrating the 

 species figured by Forbes, I am greaHy indebted to Mr. George Nicholson. 



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