396 BOTANICAL GAZETTE [NOVEMBER 
means of vegetative propagation. The central rosette of leaf 
rudiments is comparable to a diminutive form of winter bud, such 
as is common to this and other species of the Drosera. The appear- 
ance of tentacles and especially chlorophyll on the petals of the 
chloranthic flowers may be an adaptive feature to enable the 
flower to maintain itself until rooted in the substratum. 
FERNALD’s (3) monstrous flowers in D. rotundifolia comosa 
appear to be the most marked case of chloranthy described for the 
Fic. 3 
genus. The organs of the flowers of this species may all become 
modified and assume the appearance of leaflike structures. It 
seems that vegetative propagation is absolutely essential to the 
perpetuation of this form. PLaNcHon’s case of chloranthy in 
D. intermedia shows flowers with organs least modified. The 
calyx in these flowers never becomes modified and the normal 
carpels may also be present. The stamens and the petals are 
invariably modified. In the case observed all the organs except 
the stamens are modified to assume the form of tentaculiferous 
leaves. The carpels are replaced by a rosette of leaves resembling 
