116 THE .TOmNAL OF BOTAI^T 



from the Afzeliance and, following De CandoUe, inserted amongst 

 the Cinnamomece. In this latter group and that of PimpinellifolicB 

 are included seveml species variously placed by others ; these are 

 S. l(Bvi(/afa, R. chinensis, R. Carolina., R. bracteata, R. micro- 

 phi/lla, R. Banksia, etc. Strangely enough, in these cases forms 

 with subfoliar glands are allowed to stand as usual. 



For the most part the system is carried through strictly on the 

 above-mentioned natural principles which ought to yield a simple and 

 clear treatment as the types constitute the tie uniting the groups ; 

 this naturally means a large number of new names which, in the case 

 of the Swedish species, are supplied by the author and R. Matsson. 

 A few old names are retained, which must be employed in the 

 restricted sense demanded by Almquisfs scheme. 



The drawings are so careful that it would seem relatively easy for 

 the trained eye to determine the types by their aid; nevertheless, 

 dirticulties soon arise owing to the great breadth of variation seen at 

 all points when details are investigated. 



According to Almquist the geographical distribution of the 

 various types is greatly different ; some are Holarctic, others are 

 Palsearctic, whilst still others are confined to Europe. Even in 

 Europe some are western and some eastern ; one, indeed, is confined to 

 Scandinavia. 



At this stage the author provides many facts of great interest, 

 e. g. he mentions that in the Fa^roe Islands R. 'piminnelli folia is 

 replaced by semi-villosan R. fwroensis, which he regards as a mutant 

 of the former ; R. orient a Us is similarly a semi-villosan. R. pimpi- 

 nellifolia Almquist looks upon as a juvenile species, inasmuch as its 

 leaves are not further advanced than the stage of an " a " leaflet, 

 whilst the stem bears the prickle armature of a normal second-year 

 shoot of other roses. 



Sveriges Roscd is an important contribution to the literature of 

 the genus Rosa ; one can easily forsee that its new revolutionary 

 opinions as outlined above will provoke criticism, and thus by their 

 very novelty stimulate a new and fruitful study of the genus, thereby 

 necessitating a revision of names as employed by previous authors. 



A full index and all the named species and subspecies add to the 

 value of the work. 



Carl Traaet?^, 

 Staback, Norway. 



[We are indebted for this notice to Dr. J. W. Heslop-Harrison of 

 Armstrong College, Newcastle-on-Tyne, to whom it was forwarded 

 by the author for publication in this Journal. Dr. Harrison has 

 rendered the translation somewhat more idiomatic, but otherwise the 

 review is as it was sent. Dr. Harrison writes : " Almquisfs views 

 agree closely with mine derived from an intensive study of the genus 

 from the genetic standpoint. The ' a ' leaflet referred to above is 

 the lowest one of the flowering shoot in Almquisfs nomenclature ; to 

 quote his exact words ' PS, alia fig. betyder ' a ' och * h ' nederblad pS 

 blomskottet, 'c' mellanblad, '</' och 'e' overblad.' " — Ed. Jouen. 



BOT.] 



