72 



116. Polygonum amphibium L. 



Rare, and doubtless originally accidentally introduced, but it con- 

 tinues to exist by reproducing itself. The land form, which occurs in 

 enclosed flelds does not flower at all, but on Sando Rostrup met with 

 the aquatic form bearing some spikes; in 1897, however, \ve did not 

 find any flowers in the same locality. 



Sando: Sands (R., !^; Syd.: Vaag (R., !) and Sunnbo (C.Jensen). 



Fig. 26. Polygala inilgaris L. var. Ballii (Nym.j Ostenf. Specimcn from Videro (Ostvig, Aug. 9th, 1897J. 



(V2 natural size). 



117. P. aviculare L. 



Found here and there on the sea-shore, and as a weed at the villages. 

 Fr. end of August. 



t P. Convolvulus L. 



A weed at Thorshavn R., W.), but does not flower. 



118. P. viviparum L. 



Common outside enclosed fields and on the hills. It occurs some- 

 times with perfectly glabrous leaves and sometimes with leaves hispid 

 beneath. 



Fl. June— July. 



Landt mentions P. Pcrsicciria and P. Hydropiper. Is this not a confusion with 

 Danish states? 



