2l6 Plants (Did fJii'ir IWiys in Sonth Africa 



CC. Calyx herbaceous, petals present ; 

 ovary free or partially united to 

 tubular axis, leaves opposite. (Co- 

 hort Myrtiflorse.) 

 Ovary free, capsule many seeded . Lythrace^. 



Ovary free, or adhering to the axis, 



fruit a one or two-seeded berry . Rhizophorace.^. 

 Fruit a drupe, capsule, or berry ; 



stamen knee bent opening by pores Melastomace.^. 

 BBBB. Perianth epigynous. 



C. Inflorescence cymose, usually solitary, 

 rarely racemose. 

 D. Placentition parietal; stamens 

 many. 

 Flowers spirocyclic ; fruit a many- 

 seeded berry .... Cactace.e. 

 Flowers cyclic ; fruit 3-celled, seeds 



solitary under shrubs . . . Loasace.^, 



DD. Placentation axile, stamens many 

 or few. (Mvrtiflor:-e, excluding 

 Begoniacete and Rosacea.) 

 E. Leaves stipulate. 



F. Fruit a capsule ; stipules persist- 

 ent ; leaves alternate. 

 Flowers moncecious ; fruit 

 winged, many seeded, succu- 

 lent, perennial herbs . . Begoniace,'E. 

 Flowers perfect, fruit not 



winged, cells i-seeded . . Rosace.^. 



FF. Fruit a berry, stipules decidu- 

 ous ; leaves opposite. 

 Trees or shrubs, growing by 



the sea .... Rhizophorace.e. 



EE. Leaves exstipulate. 

 F. Stamens indefinite. 



Trees or shrubs, leaves mostly 

 opposite entire ; placentation 



axile Myrtace.e. 



Under shrubs, leaves alternate, 



lobed ; placentation parietal . LoASACE.t. 

 F"F. Stamens definite. 



G. I'^ruit many seeded. 



Stamens knee bent, dehisc- 

 ing by terminal pores ; 

 leaves opposite . . Melastomace.'e. 



Stamens not bent, dehiscing 

 lengthwise, flowers always 

 four parted . . . Onagrack.'E. 



