306 



Fig. 17. Dr aba arctica J. Vahl. 



(Specimen from Northwest 

 Greenland c. 71° collected by 

 N. Hartz). 



In Arctic regions found in 

 Arctic America, all over West 

 and East Greenland, Jan Mayen, 

 Spitzbergen, Beeren island, Kolg- 

 uev, Novaya Zemlya, Waigatsch, 

 Arctic coast of Asia, the New 

 Siberian islands. Outside the 

 Arctic regions found in the 

 Rocky Mountains, Iceland, Fa- 

 roe islands, Scotland, Ireland, 

 north Scandinavia, north Russia, 

 Siberia, Ural-, Altai- and Bai- 

 kal Mountains , Kamtschatcha, 

 Ounalaschka. 



Dr aba arctica J. Vahl. 



Differs from D. hirta (Fig. 17) 

 especially by the dense clothing 

 of the shorter, branched hairs, 

 so that the whole plant gets a 

 white-grayish coating; the pods 

 are oblong, densely hairy, and the 

 style is somewhat longer than 

 is usual in D. hirta. J. Vahl has 

 described and figured this plant 

 in Flora Danica tab. 2294 and 

 noticed the arched pods. Cer- 

 tainly several of the plants collec- 

 ted by the author and now in 

 the herbarium of the Botanical 

 Museum at Copenhagen have 

 such pods (which therefore have 

 some likeness to the pods of 

 Schivereckia podolica (Bess.) 

 Andrz.); but this seems to be 



