Caryophyllaceæ. 233 



F. The Stellaria crassijolia type. Shoots Hke those of 

 E, but with hibernacula. 



G. The Stellaria media type. Hapaxanthic species. 



It must be remarked, that there is absolutely no distinct 

 limit between these groups — nor anywhere else in the 

 plant-world — and it is possible that more exhaustive in- 



Fig. 1. Melandrium apetalum. 



vestigations will prove, that there are several more species 

 with subterranean runners, than those quoted by me. 



A. The Melandrium type. 



Spot-bound, caespitose, pollacanthic species, with 

 typical rosettes on semi-rosette shoots. The uppermost parts 

 of the flowering shoots with elongated internodes usually 

 protrude far above the rosettes (Fig. 1). No markedly pul- 

 vinate forms. 



