90 SOUTH AFRICAN FLOWERING PLANTS. 



I will now compare the flower of Heliopli' ila with 

 that of a very common introduced wxed called the 

 Shepherd's-purse, in Latin Cwp>id'la Bur' sa-Pasto'ris. 

 The accompanying figure (Fig. 33) supplies all the details 

 as follows : (1) is a complete flower. In (2) the calyx 

 and corolla are removed. The stigma (1, 2, 5) is rough 



and globular, such being usually the case with regularly 

 self-fertilizing flowers of this family. (3) is a trans- 

 verse section of the ovary, showing a very narrow^ false 

 dissepiment, and as the pod is so small it is called 

 a Silicida ; (4) is an ovule ; (6) is a ripe silicula, (a, a) 

 being the valves — (h) is the remains of the style — which 



