134 Plants and their Ways in South Africa 



When carpels are separate as they are in Crassula, they 

 are said to be apocarpous. When they are joined as in 



Fig. 121. — Hibiscus cethiopicus^ 

 L. (From Edmonds and Mar- 

 loth's ' ' Elementary Botany for 

 South Africa ".) 



Fig. I20. — Flower of Thorn-apple 

 {Datura Stramonium, L.) (natural 

 size), showing gamosepalous calyx. 

 (From Thom6 and Bennett's 

 " Structural and Physiological 

 Botany ".) 



Fig. 122.— Pistil of Lily, with 

 ovary, style, and stigma. (From 

 Thom6 and Bennett's "Struc- 

 tural and Physiological Bo- 

 tany ".) 



Hibiscus, they are syncarpous. The parts of a pistil are — 

 ovary, style, and stigma. 



Crassula^ Hibiscus^ Ornithogalum (" Chinkerinchees "), and 



other flowers have four whorls. Their flowers are complete. 



Clematis (Traveller's Joy), Protea, and others have but 



