274 



PHYLLODY. 



the instances to be now mentioned were not strictly 

 cases of chloranthy. 



Seringe^ has described a malformation in Diplotaxis 

 tenuifolia in which all the floral organs were replaced 

 by sixteen distinct leaflets which had preserved their 

 proper relative position. The Cruciferce, of which 

 family the last-named plant is a member, are particu- 

 larly liable to this malformation, as also are the 

 RosacGoe, as will be seen from the following illustrations. 

 Roses indeed often exhibit alterations of this kind as 

 the commencement of prolification. There is also in 

 cultivation arose^ called the green rose, "Rose bengale 

 a fleurs vertes," in which all the parts of the flower are 

 represented by leaves. One of the most remarkable 

 features in this plant is, that the carpels have often 

 two ovules on their margins. Now, Payer, in his 

 " Organogdnie," has shown that at a certain period 

 of the development of the ordinary rose flower the 

 ovary contains two collateral ovules, of which one 



Pia. 151. a. Open leafy carpel of " green rose," with two deformed 

 omlea. h. Ovnle separate, c. Primine removed, d. Secondine and 

 nucleus, with the bulbous end that projects through the micropyle. 



> 'BuU. Bot,'t. i,p.6. 



' Lindley, ' Theor. Horticult.,' ed. 2, p. 84, f. 17. 



