ADVENIITIOUS LEAVES. 



lt)5 



or any absolute increase in the number of organs, as 

 in Prolification. Siicli a case is represented in fig. 

 78, which shows a portion of tlie stem of a species of 

 Valeruma, bearing at tlie summit, not an inflorescence, 

 but a tuft of leaves without the slightest indication of 

 flowers. 



Drs. Hooker and Thomson relate that in Northern 

 India the flowers of Anemone rlvularis are very generally 

 absent, and their place supplied by tufts or umbels of 

 leaves.^ In the collection of the late Mr. N. B. Ward 



Fio. 78. Tuft of leaves replacing the inflorescence in a species of 

 Valeriana. 



was a specimen of lupin in which the flowers were all 

 absent, and their place supplied by tufts of leaves. 



A similar appearance has been noticed in Coinpomta'y 

 and I owe to the kindness of Professor Oliver tlie com- 

 munication of a specimen of a species of lilikma from 



Flora Indica,' p. 23. 



