Arctic Plants: Morphology and Synonymy 

 VALERIANACEAE. 



59 B 



Valeriana capitata Pall. 



This has a long, about 7 cm., creeping rhizome with many slender, un- 

 branched, secondary roots, while there is no trace of the primary root, at least not 

 in fully matured individuals. There is no rosette of leaves, only a pair of basal 

 ones, and the aerial stem seldom bears more than two pairs. 



CAMPANULACEAE. 

 Campanula uniflora L. (Fig. R). 



Some remarkably tall specimens measuring 22 cm. were collected on the 

 south coast of Coronation gulf; all the other specimens are of normal size, and 

 niuch smaller. The vegetative structure is quite interesting. As shown in the 

 figure, the primary root is developed as a relatively large, wrinkled tap-root, 



FiGintE R. 

 Flowering specimen of Campanula uniflora L., showing the large primary root, the ascending 

 subterranean stems terminated by rosettes of leaves and flower-bearing steams; natural size; 

 specimen from Bernard harbour. 



