THE PLUMBAGO FAMILY. 207 



FlovMTS — Calyx, 5-parted; corolla, more or less 

 labiate; stamens, 4, didynamous; ovary, free, 2- to 

 4-celled. 



Fruit — Separating into 4 nutlets, 2 -parted (Sela'go), 

 or juicy. 



Plumbagineae. 



The Plumbago Family. 



This order contains 200 species of only 8 genera in 

 2 tribes, represented in South Africa by 2 genera in one, 

 and 1 genus in the other tribe. 



Plumba'go. — P. Capen'sis is familiar to all for its blue 

 flowers, and by being so often grown as hedges, etc. 



The calyx is tubular, having glandular hairs (Fig. 

 83, II.), the corolla-tube being much elongated. The 

 stamens, as in Heaths, are hypogynous, and not adherent 

 to the corolla-tube (II., III.). The ovary is one-celled 

 (IV.), but the five free stigmas indicate the presence of 

 five carpels (III.). There are five honey-glands on the 

 receptacle (III.)- (I^-) is the diagram of the flower. 

 The single ovule is suspended on a long cord (II.), 

 called the funicle, or " little cord," as the word means. 

 The micropylc, or orifice, to the ovule is at the top, and 

 a sort of plug comes down from the style, bringing the 

 pollen-tube with it directly into the micropyle. 



Stat'ice. — This genus represents the other tribe in 



