CLASSIFICATION 185 
brilliant. They seem to be visited by insects for the 
sake of the pollen and hence cross-pollinated, but self- 
pollination can easily occur. 
Other Genera.—Galenia (Kraalbush) is common on 
the Karoo. Tetragonia is very like the ice-plant, having 
leaves which glistenin thesun. Aizoon has red flowers 
and is found in the Cape. 
Vegetative Reproduction—Many species of Mesembry- 
anthemum are readily reproduced from slips. 
Fie. 104.—Erica cerinthoides. 
I. Anther. II. Floral Diagram. III. Longitudinal Section of Flower. 
155. N. O. Ericaceae.—General Characters.—Plants, shrubs, 
or trees. Leaves simple, usually narrow. Flowers regular. 
Calyx 4-5 partite, persistent. Corolla 4-5 petals, gamopetalous. 
Stamens usually twice as many as petals, dehiscing by terminal 
pores. Pollen grains in tetrads. Gynoeclum 4.5 carpels, syn- 
carpous, superior. Below the gynoecium is a fleshy dise secret- 
ing honey. 
