CLASSIFICATION 203 
Arthrosolen (or Struthiola) ; 
Either Erica or Salvia; 
Either Solanum or Disa; 
Hither Leucospermum or Pirus ; 
Mesembryanthemum. 
8. Give an outline of the scheme of classification of flower- 
ing plants you have used, and show clearly the principles, on 
which this method of grouping the orders is based. 
9. Give an account of the carpels found in the following 
genera, paying special attention to 
(a) Their number ; 
(b) Their position with regard to the other floral members ; 
(c) Whether the ovary is superior or inferior :— 
Aloe; 
Gladiolus ; 
Protea, or Rosa ; 
Erica, or Salvia; 
Crassula ; 
Senecio ; 
Crotalaria. 
10. Give the most important characters of four South African 
plants belonging to different Natural Orders which you have 
seen growing from the following :— 
x 
Liliaceae ; 
Tridaceae ; 
Proteaceae ; 
Rosaceae ; 
Ericaceae ; 
Compositae ; 
Crassulaceae ; 
Leguminosae. 
Give the names of the genera to which they belong and 
localities in which you found them. State by what means 
their flowers are pollinated. How are their seeds distributed ? 
Mention any other facts of interest concerning them. 
11. Describe the principal characters of the following :— 
(a) The inflorescence of Brassica. Give a diagrammatic 
sketch. 
