132 P. W. C. Areschong. 



maxime elongata, foliosa, apice haud raro curvata & sub foliis turionum occulta. 

 Antherse glabrse. 



This species holds itself completely constant, and does not show any real 

 approximation to any of ihe other Scandinavian species. Nor have I observed, 

 that any of these species have changed in such a nianner, that they can be 

 considered, in any respect, to äpproach this species. Amongst tlie Scan- 

 dinavian species, R. oorylit'olius is the only one, that has any, even 

 though it be rather a reruote, likeness to R. scanicus. This in particular 

 holds good of one of its subspecies, viz, ß. * maximus. R. scanicus is cha- 

 racterized also by its almost prostrate, terete turiones, that are armed with 

 uniform prickles, shortly stalked leaves and terminal leaflets, the latter being 

 veiy broad and shortly pointed, by almost orbicular, shortly clawed petals and 

 sepals erect on the fruit. Also the leaflets on the lowest leaves of the flowering 

 slioots are not seldom almost orbicular. Nevertheless, in spite of this accor- 

 dance. I greatly doubt a nearer relationship between these species. For the 

 haiiy turiones, the small sepals, the well developed fruit, are indications which 

 show, that this species must beloug to another group, than the corylifolians. 



Focke has in letters to nie, as well as publicly (Die nordwestlichen 

 Rubus-Formen und ihre Verbreitung, pag. 96), expressed the opinion, that my 

 species is very nearly related to, yes, perhaps, identical with R. chlorothyrsos, 

 Focke. Mr. Neuman who first discovered R. scanicus, has since (in "Öfvers. af 

 Kongl. Vetensk. Akad. Förhandl.", 1883, n. 8, pag. 77) stated the eharacteri- 

 stics by which this species is separated from R. chlorothyrsos. These cha- 

 racteristics are: the erect sepals at first ripening and the almost orbicular 

 petals. Mr. Neumax certainly also states as a difference between these two 

 spicies, that in the II. chlorothyrsos the panicle is pendulous. but erect in 

 the R. scanicus, which, however, is by no means a constant character, for 

 even in R. Bcanicus, it is not uncommon that the panicle becomes pendulous. 

 But the last mentioned species is distinguished from R. chlorothyrsos, by 

 various other characteristics so that these species can bardly be identical. In 

 (he R. scanicus, for instanee, the leaflets are much broader, and like the 

 leaves themselves, shorter stalked. - - at the same time the leaves of the tu- 

 riones are not seldom temate, and the upper floral leaves are broadly cordate — 

 but in the R. chlorothyrsos they are small and lanceolate. Likewise on the 

 turiones of R. scanicus, the prickles are much more nuinerous and at the 

 same time shorter. 



