37 2 Holm . — ( 9 /^ O do lari a virginica. 
at the right and left sides of the flower, they might at first 
glance appear to be two prophylla. In the woodcut the single 
flower A shows this arrangement very clearly. If the 
median three-flowered inflorescence in the same figure is 
observed, it will be seen that this arrangement does not occur 
in the central flower. In this flower the leaves [c and c) are 
Woodcut 6. 
situated in the front and back of the flower, and not at the 
sides. The two bracts (B) might be considered as the pro- 
phylla of the median flower, their place being to the right and 
left of it. The difficulty in this, however, is that if c 1 and c l 
are the prophylla of the lateral flowers, the median would 
have not only two prophylla, but also two calyx-leaves. It 
will be seen, therefore, that this conclusion would not be 
natural, and it must necessarily be supposed that the flower 
of Obolaria has no prophylla, but only a two-leaved calyx. 
