464 



Syncotylous Races. 



after syncotyly.^ I found the former case, for instance, 

 in AnagaUis grand! flora, CoUinsia lictcrophylla, C. grandi- 

 flora, C. hicolor, Scabiosa atropiirpurea, Centranthm 

 macrosiphon, and very abundantly in Merciirialis annua 



Fig. 96. Mercurialis annua. A lateral branch with spiral 

 torsion. All the leaves of the twisted region are situated 

 on one side of the stem. 



(Fig. 96). Fasciations also occurred in the latter and 

 several other species, especially in Helianthus annims. 

 Moreover, pitcher formation seems often to be associated 

 v^ith syncotyly, either on the same individuals or amongst 

 ^Ber. d. d. hot. Cos., Vol. XII, he. cit., 



