Rosaceæ. 99 



glands and having mucilaginous inner-wails in the epidermis of 

 the upper side, and lastly (4) in the number of the vascular 

 bundles in the leaf-stalk, where Rub. chamæmorus has five and 

 the others three. According to Fritsch (1. c.) special import- 

 ance should be attached to the last feature when the question 

 is to distinguish anatomically species and groups of species 

 among the Rubi. Thus, the anatomical investigation together 

 with the morphological appears to support Focke 1 who sepa- 

 rates Rub. chamæmorus from the other herbaceous Rubi and 

 places it in a distinct subgenus. 



Alchimilla alpina L and A. færøensis (Lge) Buser. 

 Lit. Müller, 1881. Jonsson, 1895. Norman, 1895. Knothe, 

 1902. Schröter, 1904. Hollstein, 1907. 



As these two species agree in many of the points which 

 have been investigated they are here treated jointly for bre- 

 vity's sake. 



A. alpina extends north of the Polar circle in Scandinavia 

 only; it is found also in Greenland, Iceland, the Færoes, the 

 mountains of Central Europe and in the Urals. A. færøensis has 

 been found only in the Færoes and in Iceland. The habitats 

 are more or less dry, but A. alpina at any rate can live in 

 widely different conditions: in grassy localities, on cliffs, on 

 heaths, rocky flats, in willow copses, etc. 



The alcohol material was gathered in Greenland, Iceland 

 and the Færoes. 



A. alpina has a primary root of rather long duration from 

 which the shoots spread out upon the ground with apices 

 turned upwards. Usually the shoots do not reach any con- 

 siderable length: they branch freely and are fixed to the 

 ground by adventitious roots. Looser or denser tufts are formed. 

 The rhizome in A. færøensis is thicker than that in A. alpina; 



1 Abh. d. Naturw. Ver. Bremen, IV, 1874 and Synopsis Ruborum 

 Germanise. Bremen, 1877. 



7* 



