;i4 Plants and their Ways in Sontli ^Ifrica 



F. Stamens in several sets, opposite 

 the petals ; anthers 2-celIed ; pla- 

 centation parietal or axile. 

 Calyx imbricate ; leaves opposite, 



exstipulate; oil glands present Guttifer.e. 

 Calyx valvate ; leaves alternate, 



stipulate; oil glands absent . Tii.iace.^. 

 FF. Stamens monadelphous ; leaves al- 

 ternate stipulate ; placentation 

 axile. 

 Anthers i-celled .... Malvace.e. 

 Anthers 2-celled .... STERcuLiACE.q;. 

 BB. Perianth and stamens slightly perig)'nous ; 

 receptacle usually hollow or tubular. 

 C, Carpels apocarpous. (Cohort Rosales.) 

 D. Seeds endospermous ; leaves ex-stipu- 

 late except Connaracea, opposite or 

 alternate. 

 Carpels isocarpic ; stamens iso or 



diplo-stemonous, fleshy plants . . Cras.sulace.'E. 



DD. Seeds ex-endospermous ; leaves mostly 

 stipulate; usually alternate. 

 E. Stamens many ; flowers regular. 



Fruit a pome, drupe, or achene . Rosace.e. 



Fruit a legume .... Leguminos.^. 



EE. Stamens few. 



Carpels 5, fruit a follicle; stamens 



5-10; stipules absent . . . Connarace.e. 



Fruit a legume or loment ; stamens 



10; stipules present . . . I^eguminos.e. 



CC. Carpels syncarpous. 



D. Placentation axile. (Cohort Rosales 

 excluding Elatinace^.) 

 E. Fruit a many-seeded capsule (few 

 seeded Ciinovia, Saxifvagacca'). 

 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.ti. 



Styles united; leaves simple, stipu- 

 late opposite .... Elatinace.e. 



Styles united; leaves alternate, 

 simple, exstipulate, shrubs witii 

 conspicuous flowers . . . Pittosporace.'E. 



