164 Plants and their Ways in South Africa 



F. Leaves not gland-dotted ; disc broken 

 up into separate glands. 

 Capsule splitting into 5 carpels . 

 Capsule not splitting ; styles of three 

 lengths ...... 



Capsule not splitting ; style I ; disc 

 often at one side, not surrounded by 

 the stamens ..... 



FF. Leaves gland-dotted ; disc conspicu- 

 ous, cushion-shaped 

 EE. Flowers always imperfect, the staminate 

 and pistillate flowers on the same or 

 on different plants. 

 Carpels 3, separating ; frequently milky 

 plants ...... 



DD. Stamens usually very numerous, more or 

 less united ; disc inconspicuous or none ; 

 sepals valvate ; carpels 2-many ; seeds 

 I -many. 

 Stamens in several sets ; anthers 2-celled ; 

 embryo straight ..... 



Stamens monadelphous; anthers i -celled; 

 embryo curved ..... 



Stamens monadelphous; anthers 2-celled; 

 embryo curved ..... 



BB. Stamens around or upon the ovary, 



C. Petals none ; sepals coloured. Ovary 

 surrounded by the hollow receptacle, 



l-celled 



CC. Petals present. Ovary inferior. 

 Ovules many. Ovary 4-celled . 

 Ovules one in each of the two carpels . 

 Series IL Sympetal^. — Petals united (free in 

 some AsclepiadacesB and Cucurbi- 

 taceae). 

 A. Ovary superior. 



B. Stamens free from the corolla, as many or 

 twice as many as the petals. Parts of the 

 flowers arranged in fours .... 

 BB. Stamens borne on the corolla, and opposite 

 its lobes. 

 Ovary i -celled, with one ovule growing 

 from the floor of the ovary 

 \ BBB. Stamens borne on the corolla and alternate 

 with the petals. 

 C. Carpels 2, separate (united in Gentianaceae). 



Geraniace^. 



OXALIDACEiC:. 



SAPINDACEyC. 

 RUTACEy*:. 



EUPHORBIACE/E. 



TlLIACE.^. 



Malvace.e. 

 Sterculiace.^. 



Thymele^. 



Onagrace^. 

 Umhellifer.*;. 



Ericace^. 



Plumbaginace^.. 



