THE CRASS ULA FAMILY. 



139 



petals, as in CotyUdon, Kalancho'ce and Bryophyl'lum, 

 the only three in South Africa. 



Cras'sula. — The calyx has five sepals very slightly 

 coherent below. The petals are five, free or coherent ; 

 stamens five ; there will be found some scales, probably 

 honey-secreting, and lastly, five carpels, as a rule 

 nearly free, so they become follicles with many seeds 

 (Fig. 59)> 



Fig. 59.— Cms'sw^a. I. Flower (X 2). II. Diagram. 



Cotyle'don. — In this the corolla has all its petals 

 coherent, which carries ten stamens adherent to it. 



Bryophyllum. — This genus has one species growing 

 near Delagoa Bay ; but another has spread over the 

 warmer regions of the North, B. cahjci'num, which is 

 remarkable for propagating itself by its leaves. These 

 are oval and crenate, or scalloped on the margin, i.e, 

 indented and rounded between the indentations. The 

 leaves are fleshy, and fall before beiug decayed. Eoots 



' The follicle resembles the legume, as of a pea ; but bursts dowu 

 one edge only, not both, as iu the legume. 



