can judge from an experience of a few weeks it seems to 

 require a sunny station, but not a dry atmosphere. 



Mr. Bentham has pointed out its near affinity to the 

 Rhexia ina3quilateralis of Schlechtendahl, afterwards called 

 Plagiophyllum by him, and Centradenia by Don. Upon 

 turning, however, to an authentic specimen of that plant, we 

 find it different in some respects : its leaves are much larger 

 and thinner, its flowers appear to be smaller, and are arranged 

 in little terminal racemes much shorter than the leaves. 

 Neither can this be the Plagiophyllum grandifolium of 

 Schlechtendahl, which is described with leaves as much as 

 six inches Ion*?. 



One of the most curious circumstances connected with this 

 plant is the constant abortion, and frequent loss, of one of its two 

 opposite leaves. This tendency to abortion always alternates 

 along the branches, so that if the first imperfect leaf happens 

 to be on the right of the branch, the next is on the left, and 

 so on. The smaller leaves readily fall off, and thus the others 

 appear to be alternate, as is in fact shewn by the artist who 

 prepared the accompanying drawing. 



Fig. 1. represents a larger stamen; 2. a smaller; 3. the 

 upper end of the ovary, style and stigma. 



