296 



To this species belong: 



Draba aspera Adams. (Fig. 5). The leaves here are 

 mostly ciliated; small branched hairs are of rare occurrence 

 on the surfaces. I have not seen original specimens, but 

 there are specimens closely agreeing with the description 

 given by De Gandolle from the Taimyr peninsula (legit Mid- 

 dendorf), the Tschuktscher-land (legit Kjellman), St. Laurence 



Fig. 5. Fig. 6. 



Draba aspera Adams. Draba oligospermia Hook. 



(Specimen from the (Specimen from Arctic America in 

 Taimyr peninsula 73° 45' Herb. Hook), 



collected by Middendorf). 



bay, Beringsstrait (leg. Escholtz under the name of Draba 

 algida). 



Draba oligosperma Hooker (Fl. Bor. Am. I, p. 51) (Fig. 6) 

 is not distinct from Draba glacialis from Arctic America 

 determined by W. Hooker. The leaves are mostly covered 



