Rosaceæ. 105 



results and shows that the species which have the concentric 

 structure of the bundles of the leaf-stalk are found in the 

 "region montagneuse" of the Alps, while the subnival Alpine 

 species have the common collateral structure of the bundles. 

 Fig. 39, F shows a transverse section of the stalk of A. fæ- 

 røensis. 



As is well-known S. Murbeck 1 has demonstrated par- 

 thenogeny in a whole series of Alchimilla-species including 

 A. alpina in which development of the embryo frequently 

 takes place even while the flower is in the bud-condition. 

 Mirbeck did not find a single pollen-grain capable of germin- 

 ation in A. alpina. Nor does A. færoensis appear to develop 

 pollen-grains capable of germination. 



In the insignificant yellowish-green, apetalous flowers 

 there is around the gynaeceum a broad fleshy disk which 

 secretes honey. II. Miller (1. c. ) has described the structure 

 of the flower of A. alpina. 



Alchimilla vulgaris L. 



Lit. H. Müller, 1881. Leist, 1889. Jonsson, 1895. Nor- 

 man, 1895. Sylvén, 1906. 



In Arctic Norway this collective species grows in widely 

 different localities, having been found both in dry and in 

 damp places, in open spots and in birch-woods (Norman). 

 In Greenland it grows in damp grassy fields and in willow- 

 copses. 



In my material the following elementary species occurred: 

 A. (icutidens Bus., glomerulans Bus., and minor Huds. All 

 these species extend to the north of the Polar circle in Green- 

 land and Europe; they are also found in Iceland, and A.acut- 

 idens and A. minor occur in the Færoes; they are found, in 



1 Parthenogen. Embryobild, in d. Gattung Alchimilla. Act. Univer. 

 Lundensis T. 36, 2. 



