THE HEATH FAMILY. 



175 



Eri'ca. — Fig. 73 (1) is a flowering spray of the plant. 

 (2) is a flower showing the four sepals (a) and the globular 

 corolla with four small teeth or lobes. (3) shows the 

 eight stamens, which are free and hypogynous, not 

 being adherent to the corolla, as is the rule when this 

 is gamopetalous. Plumbago affords another exception. 



Fig. 73. — Eri'ca (Heath). (For description, see text.) 



Each filament carries a purple anther, with two distinct 

 lobes, shaped like the two prongs of a fork, and opening 

 by a hole, or pore (5, a), at the summit (4 and 5 are 

 back and front views). (6) is the pistil with the ovary 

 cut through vertically, showing the central placenta, 

 where the eight edges of the four carpels meet, carrying 



