Arctic Plants: Morphology and Synonymy 



57 B 



crown of the root, and most of these shoots are flower-bearing, terminated by 

 the dense, capitate inflorescence; usually some few purely vegetative shoots 

 develop from the crown of the, root, but these do not grow any further, nor do 

 they winter over. The vegetative reproduction is effected by means of the 

 persisting stem-bases with their auxiliary buds, thus representing a pseudo- 

 rhizome. 



Pedicularis [Tourn.] L. 



With respect to the habit of the species collected, four types are represented. 

 They are all perennial, and the primary root persists, but is developed to quite 

 a different extent. P. arctica, P. lanata, and P. hirsuta represent one type in 

 which the primary root is very thick, wrinkled, and commences to branch at a 

 depth of about 2 cm.; it then develops a few lateral roots, equaling the primary 

 in length, and of almost the same thickness. There is no rhizome, and a compact 

 rosette of green leaves is borne at the crown of the primary root. In the centre 

 of the rosette the flower-bearing stem develops. In P. sudetica, on the other 

 hand (Fig. Q), there is a subterranean, horizontally creeping stem which is 



FiGUEK Q. 

 Pedicularis sudetica Willd., showing the horizontally creeping rhizome, a stolon, some leaves, 

 and the base of the flower-bearing stem; natural size; specimen from Camden bay. 



