5° 



BOTANICAL GAZETTE 



[JANUARY 



the species. The likeness is perfect. Whether the variation here is 

 admitted to be at the present time in each instance a fresh display 



of homoeosis, or is sus- 

 pected of being rever- 

 sionary, the abruptness 

 of the change and the 

 manner of its occurrence 

 seem to me plain indi- 

 cations of the origin of 

 the decompounding. It 

 seems to me far more 



likely that this is en- 

 tropic homoeosis, past 

 or present, than that 

 the complex form of 

 the compound segments 

 was worked into perfect 

 likeness to the original 

 blade slowly by natural 

 selection. 



Bonnet recorded a 

 variation of the jasmine 

 (Jasminum officinale) 

 which is seen to be 

 homoeotic in a similar 

 way. Fig. 15 shows the 

 normal and variant 

 forms side by side, as 

 delineated by Bonnet 

 (Oeuvres2i363. pi. 24)' 



Inflorescences of 

 certain marked types 



M ■ 



homoeosi 



I have <sf 



sometimes 



SU11IC LllllCb UIJ 



for example, umbels and pseudumbels 



Of the 



N 



J 



- „, wu . uy AUSTIN <J. APGAR, I 



This species normally bears simple u 



1 



ends 



