Fig. 5 (-''3). 

 a: V.tricolor from tie Id, S. Lvngvig, Holmsland Klit: erecta, n.atropurp, grandifol. (Population Y, 



table I). 

 6: V.tricolor maritima iiom dune, S. Lyngvig, Holmsland Klit: prostrata, atropurp, parvifol, cae- 



spito-m. The light parts were covered with sand. The turgor has bent the stems downwards with 



vigour. 

 c: A branch of b with flower. The light parts of it was covered with sand. The subterraneous parts 



are negative geotropic, the supraterraneous ara trausversely geotropic. 



24* 



