Some Observations on the Genus Rubus. lbo 



be found in the same wood, they do not grow together, hut the typical form 

 i- to he met with within the wood, in damp and shady places, and the variety 

 in dry places on the outer edge of the wood. The former grows in localities 

 which liken those in whicli this species is growing on the eontinent. I 

 assume therefore that the typical form, when it spreads itself to the outer 

 edge of the wood, at last by the inHuence of the soroewhat different local 

 conditions, has been modifled. The changes which the variety has undergone, are 

 beside.^ such, as could be ascribed to a more northern climate. I think there- 

 fore, that I oan draw this conclusion, that a southern form can reinain un 

 changed in a northern country, if it is exposed, in some degree, to the 

 same local conditions as those in its native land; but that under other condi- 

 tions, it is more influenced by the climate of the northern country. 



24. R. fruticosus L. fl. suec. ed. II, n. 444; R, plicatus Whe & N. I.e. 

 pag. 15; Lindeb. Ilerb. Rub. Scand. n. 5, 6, 28. 



This species is among the most common of the brambles in the Swedish 

 flora. Jt is not very far removed from the sea-coast, as, however, is the ease 

 in the most southern county of Sweden, Skåne, where it is even found, some 

 Swedish iniles from the sea. Also in the counties, immediately north of Skåne, 

 such as Sm iland and Bleking, it is met with in isolated places inland; yes, even at 

 Wenersborg in Vestergötland, this species is to be found. It is much rarer on 

 the east coast, than on the west. North of Bleking, it is to he met with, only 

 in isolated places, as far as Södermanland, at about 59° n. lat. On the west 

 coast, next to the R. corylifölius, it is the species the most common, nor 

 does it seem to be rare on the south and southwest coast of Norway even, as 

 ar aa to 60° -24' n. lat. 



In the Scandinavian peninsula, this species has little inclination to vary, 

 and intermediäre forms between it and other species, with the exception ol R. 

 Bulcatus, seem completely wanting. In the most southern part of the country, 

 particularly in open places, such as cliffs, it gets much thicker and smaller 

 leaflets, also a more richly rainified inflorescence. I have called this form 

 littoralis (Bot. obs. l«r>4, page 11). The leaflets in the shäde are larger and 

 smoother, the inflorescence also is simpler and fewer-flowered. In Bleking at 

 Slagesnäs, in the parish of KyrJéhult, a friend of mine, Mr. Svanlund, mel with 

 a small-leaved, few-flowered form, w/orthy of remark. Probably it grows on 

 very poor soil. Xcar Mellby, in eastern Skåne, as 1 have sometimes scen, it 

 can in open places get a leafy paniele, with simple leaves. In Bohuslän, as 



