180 SOUTH AFRICAN BOTANY 
Other Genera.—Geranium has regular flowers and 10 
perfect stamens. 
Monsonia has 15 stamens, and so has Sarcocaulon 
(the Candle-bush). 
Fia. 99.—The Wild Geranium. 
Many botanists include Tropeolum (the garden nas- 
turtium) and Oxalis (the sorre]) in this order. 
Oxalis has radical trifoliate leaves which in some species ex- 
hibit sleep movements. Several species have trimorphic flowers. 
There are 10 stamens, the filaments being slightly connate at 
the base. The stamens may be short, medium, or long, two 
kinds being found in one flower. The styles are free, and of three 
