2iS Plants and tJieir ]Vavs in South Africa 



D. Fruit indehiscent ; leaves alternate 

 exstipulate. 

 Fruit a drupe or berry, shrubs or herbs Myrsinace^. 

 Fruit an achene, calyx persistent, 



shrubs or herbs .... Plumbaginace.'e. 

 DD. Fruit a many-seeded capsule ; leaves 

 alternate or opposite, exstipulate. 



Herbs Primulacete. 



BB. Stamens obdiplostemonous, the outer 

 whorl opposite to petals (or sometimes 

 wanting'), hypo^ynous or slightly epi- 

 petalous. (Cohort Ericales.) 

 Shrubs or trees with needle shaped usu- 

 ally grooved leaves. Stamens usually 

 dehiscing by terminal pores . . . Ericace-t:. 



AA. Flowers tetracyclic, usually ot four whorls 

 and anisocarpic, i.e. carpels fewer than 

 parts of the other cycles ; stamens alter- 

 nating with and equal to the petals or 

 rarely fewer when zygomorphic, epipetal- 

 ous or hypogynous. Carpels usually two, 

 in CoiivolvulacccE, rarely three to five. 

 B. Perianth hypogynous. 



C, Flowers mostly actinomorphic (regu- 

 lar), inflorescence mostly cymose. 

 (Cohort Contortse.) 

 D. Leaves entire mostly opposite, car- 

 pels apocarpous or syncarpous. 

 E. Stamens equalling the petals; in- 

 ternal phloem frequent. 

 F. Latex present; leaves exstipu- 

 late, rarely stipulate ; stamens 

 applied to the stigma. 

 Pollen powdery; styles united; 



fruit a capsule, drupe or berry Apocvnace.e. 

 Pollen sticky in masses (pol- 



Hnia) ; fruit a follicle . . Asclepiadace-e. 



FF. Latex absent, leaves opposite. 

 G. Placentation axile ; lea\'es 

 stipulate. 

 Dicccious ; shrubs; leaves with 



axillary spines . . . Salvador Ac e.t:. 



Perfect ; herbs shrubs or trees Loganiace.t;. 

 GO. Placentation parietal (rarely 

 axile) ; leaves exstipulate. 

 Herbs or half shrubs, fruit 

 many seeded . . . GiiNTiANACE.^. 



