8 ARKIV FÖR BOTANIK. BAND 12. N:0 7. 



forma a stellata Dickson, for the other one that of D. ru- 

 pestris R. Brown, forma ß hirta Smith. 



The question is now: Is the real D. rupestris to be found 

 in Scandinavia? 



From Mount Kvaernskaret near Röraas in Norway I 

 have gathered a form which as to every essential character 

 agrees with the Scottish forma a with a heterotrichous pu- 

 bescence of stellulate hairs. In collections I have also seen 

 specimens with the genuine character of D. rupestris: a pu- 

 bescence of mainly simple hairs from Härjedalen, Jämtland 

 and the Lapp-territories of Lule and Torne in Sweden. 



In forms from Dovre in Norway the stellulate pubescence 

 of the leaves is generally dominant. However, it seems to me 

 as if this latter form, as well as all Northern Leucodrahce 

 with a heterotrichous covering of the leaves, pure white flo- 

 wers, even when dried, and pods, somewhat longer than the 

 pedicels for the present might be referred to D. rupestris. 

 In practice this would be all that has been called D. hirta, 

 after having excluded from it D. magellanica Lam. and its 

 subspecies. Our Scandinavian tribe of D. rupestris will cer- 

 tainly have sooner or later to be divided into several species. 

 There are sufficiently different combinations of characters 

 to justify us in so doing. I have had the oi3portunity of 

 seeing how several of these forms are constant in culture. 

 Others again have prooved to be only local forms. Thus 

 the Draha scandinavica Lindbl., 1. c, (= Draba rupestris ß 

 strida Lindbl. Bot. Not. 1841 p. 221) has proved to be only 

 a local form of Draba laxa Lindbl. (= Draha rupestris) 1. 1. 

 c. c, which, cultivated in a shady place, passes over into 

 the latter. 



4. Draba fladnizensis Wulf. 5 Draba lapponica Wg. 



The name of Draha fladnizensis Wulf, was introduced 

 in Scandinavia for the first time in the Flora of Sweden by 

 Messrs Neuman and Ahlfvengren (1901), probably after 

 Gelert. (1. c. p. 303; Sveriges Flora by L. M. Neuman and 

 Fr. Ahlfvengren p. 475). It is true, Wahlenbee^g had 

 already 1812 used it as a synonym for Draha androsacece 



