214 Plants and their Ways in South Africa 



F. Stamens in several sets, opposite 

 the petals ; anthers 2-celled ; pla- 

 centation parietal or axile. 

 Calyx imbricate ; leaves opposite, 



exstipulate; oil glands present GUTTIFER^. 

 Calyx valvate ; leaves alternate, 



stipulate; oil glands absent . TILIACE^:. 

 FF. Stamens monadelphous ; leaves al- 

 ternate stipulate ; placentation 

 axile. 



Anthers i-celled .... MALVACEAE. 

 Anthers 2-celled .... STERCULIACE^;. 

 BB. Perianth and stamens slightly perigynous ; 



receptacle usually hollow or tubular. 

 C. Carpels apocarpous. (Cohort Resales.) 

 D. Seeds endospermous ; leaves ex-stipu- 

 late except Connaracea, opposite or 

 alternate. 

 Carpels isocarpic ; stamens iso or 



diplo-stemonous, fleshy plants . . CRASSULACE^E. 

 DD. Seeds ex-endospermous ; leaves mostly 



stipulate; usually alternate. 

 E. Stamens many ; flowers regular. 



Fruit a pome, drupe, or achene . ROSACES. 

 Fruit a legume .... LEGUMINOS^. 

 EE. Stamens few. 



Carpels 5, fruit a follicle; stamens 



5-10; stipules absent . . . CONNARACEA. 

 Fruit a legume or loment ; stamens 



10; stipules present . . . LEGUMINOS.E. 

 CC. Carpels syncarpous. 



D. Placentation axile. (Cohort Resales 



excluding Elatinaceae.) 

 E. Fruit a many-seeded capsule (few 



seeded Cunonia, Saxifragaceee). 

 F. Plants in swift streams, forming a 



thalluS PODOSTEMACE^E. 



FF. Trees or shrubs ; capsules 2-5 

 celled. 



Styles separate ; leaves simple, ex- 

 stipulate, or compound, stipu- 

 late, alternate, or opposite . . SAXIFRAGACE^. 



Styles united; leaves simple, stipu- 

 late opposite .... ELATINACE^:. 



Styles united; leaves alternate, 

 simpje, exstipulate, shrubs with 

 conspicuous flowers , . . PITTOSPORACE^. 



