described. It belongs to tbe Isicas, whose distinctive charac- 

 ter resides in their having the twin ovaries completely united, 

 so that when the fruit is ripe all trace of its two-fold origin 

 disappears. It is a slender plant with deep purple branches, 

 quite smooth leaves, and very long stalked pale yellow flowers 

 stained with purple. It may be defined in the following 

 terms. 



L. (Isica) discolor ; glaberrima, foliis petiolatis oblongis acutis 

 subtus glaucis, pedunculis foliis dimidio brevioribus, 

 calyce 5-dentato glandulis ciliato, corollse tubo hinc 

 valde convexo discolore limbo multo breviore. 



