(275) 



ADDENDA TO VOL. I. 



THE LEAF. 

 Forking. 



The writer has received from Dr. E. J. Salisbury, and has 

 also himself obtained from seed, seedlings of the maize (Zea 

 Mais) having the coleoptile bifurcated, for some distance from 

 the apex. The fact that the normal coleoptile possesses two 

 widely-separated veins of equal strength is itself almost 

 sufficient to indicate its compound nature. The abnormality 

 tends still further to show that this organ consists of two fused 

 foliar organs, and yields evidence in support of the view, 

 already strongly suggested by the position of the coleoptile 

 immediately in front of the scntellum, that this organ repre- 

 sents the "ligule" of the scutellum (cotyledon), i.e. its fused 

 stipules. Bifurcated ligules have occurred on the foliage- 

 leaves of grasses. 



Enations. 



A cabbage-leaf, sent from a Surrey garden, had its upper 

 surface covered with multiform enations. Great numbers of 

 the ultimate ramifications of the cresting were almost the 

 exact counterparts, as i-egards tlieir conformation, of virescenb 

 ovules such as have been described by Celakovsky. 



ADDENDA TO VOL. II. 



THE FLOWER. 



Peolifeeation. 



A narcissus was seen in which proliferation of the flower- 

 stalk above the spathe had occurred to form a stem equal in 

 length, and otherwise similar, to that of the plant between the 

 bulb and the spathe ; it bore at the top a normal spathe and 

 flower. In another specimen the spathe subtending the pro- 

 liferated flower-stalk was excessively elongated, enveloping 

 the stalk almost to the apex. 



Dialysis. 



Partial dialysis of the corolla was observed recently in a 

 white foxglove {Digitalis purpurea) . The two posterior petals 

 were still normally united, a lateral one was united at the base 

 with the large posterior petal^ while the two remaining petals 

 were free. One or two stamens were free from the corolla. 



