380 NOTICES OP BOOKS 



during the present unsettled opinions about the limits of the species," 

 we hope, however, not in opposition to the views of the editors. The 

 list of genera and species and varieties of Salix is chiefly derived from 

 the Rev. J. E. Leafe's writings, as is that of the species of Hieracium 

 from Mr. Backhouse's 'Monograph/ The page concludes with other 

 observations needful to those who use the Catalogue ; and at the end 

 of the 1444 considered legitimate species, is given one of " Excluded 

 species;" such as are — 1, occasionally found wild through cultivation, 

 on ballast, etc. ; 2, not distinctly ascertained in Britain, or ambiguous 

 plants otherwise ; and, 3, erroneously recorded, or subsequently extinct 

 in Britain. The whole is evidently executed with care and fidelity. 



1. Schott, H. : Aroide^e. Fasc. III.-VL, each with Ten Plates. 

 Large folio. Vienna, 1855-7. 



2. Schott, H. : Icones Aroidearum. Large folio. Fasc. I., with 

 Ten coloured Plates. Vienna, 1857. 



We noticed in our Volume VII., for 1855, fasciculi 1 and 2 of the 

 first of the above two works with great commendation, and expressed 

 a hope that " nothing would occur to impede the progress of the work, 

 that was alike creditable to the author and the artist." And certainly, 

 considering the amount of time and labour required in the conducting 

 such a publication, no one can complain on that score, for we have now 

 the great pleasure of receiving the fasciculi 3-6. 



The letter-press here issued commences with the genus Tkeriopho- 

 ?ium, BL, of which the Arum crenatum, Wight, is the representative, 

 and there is only another (dubious) species, T. Dalzellii of Schott. 

 Eminium of Blume reckons 5 species : Dracunculm, 2 ; Helicodiceros 

 {Arum winitum, Ait.), 1 ; HelicopJiyllum, Schott, 3 species. Potkos 

 is limited to that group of which P. scandens, Linn., is the type, and 

 30 species, bearing, we fear, too great a resemblance to each other, 

 are enumerated. Pothoideum, Schott, is a new genus of a single spe- 

 cies from Manilla, in Herb. Hook. Heteropsis, Kth., is a Brazilian 

 genus of 3 species. The plates that accompany the descriptions are 

 beautifully executed, and are all that can be desired both in execution 

 and analysis. 



The second work, of which the title heads this article, ■ Icones Aroi- 

 dearum edit. all. Schott, 5 is the first fasciculus of a new publication, 



