362 Fr. J. Mathiesen. 



generously placed his notes on the Arctic Scrophiilariaceae 

 at my disposal. Fig. 20, B, C and D, Fig. 40 and Fig. 44, 

 which are piiblished here for the first time, have been re- 

 drawn after Professor Warming's originals, in order to be 

 reproduced according to the method employed here. The 

 remainder of the figures are drawn by myself. 



Mr. M. Porsild, mag. se, Director of the Danish Arctic 

 Station, Greenland, has very kindly read through great parts 

 of my manuscript, and made several additions of a biological 

 nature, besides having also kindly permitted me to use his 

 notes on the geographical distribution of Arctic piants. For 

 the help thus rendered to me I herewith beg him to accept 

 my best thanks. 



The following species have been investigated : - — 



Veronica fniticans Crantz. 



— alpina L. 



— officinalis L. f. glabrata Fristedt. 

 Castilleia pallida (L.) Kunth. 

 Eiiphrasia arctica Lange. 



Bartschia alpina L. 

 Pedicularis lapponica L. 



— sudetica Willd. 



— eiiphrasioides Steph. 



— Sceptriim caroliniini L. 



— capitata Adams. 



— hirsiita L. 



— lanata (Willd.) Cham. & Schlecht. 



— flammea L. 

 Oederi Vahl. 



