Zeitschrift f. ind. Abstammungs- u. Vererbungslehre, Bd. 12 





Plate II. Succession of leaves in typical Lychnis dioica (above) and in L. dioica an- 

 gustifolia. The leaves of the two series are severally homologous, the first leaf at the 

 left being a ''climax"- leaf (i.e. the longest leaf) of the rosette; the second leaf is from 

 the base of the stem, and the remaining leaves are from the successive nodes of one of 



the principal axes. 



Shull: Lychnis dioica 



