Classification of Plants 229 



twist like a corkscrew on drying, and are caught fast in the 

 weeds. When rain comes they uncoil, and as they lengthen 

 push the seed into the soil. The downward pointing hairs 

 help in scattering the seed. 



AA. Flowers irregular — 



Pelargonium. — Filaments 10, unequal in length. From 

 2 to 7 of them bearing anthers. There is but one gland, 



Fig. 227. — IMonsonia spcciosa. 



found at the base of the broad sepal. The honey is stored in 

 a hollow spur joined to the flower-stalk. 



A large genus, usually half shrubby, often with underground tubers 

 in chains (moniliform). The flowers are often cultivated and are commonly 

 called Geraniums, from which they differ in the irregular flowers, the 

 stamens, and the one gland. The flowers often give forth a delightful 

 odour at twilight. 



