90. 4«. NYMPHAEACEAE. 



4. Ovule 1. Leaves alternate. Petals scale-like. 



3 CORRIGIOLA. 

 Ovules 2 or 4. Leaves opposite or whorled. Petals 0. 



4 POLLICHIA. 



5. Styles united below. 6. 

 Styles free from the base. 8. 



6. Petals 2 parted. 8 DRYMARIA. 

 Petals entire, notched, or 2 toothed. 7, 



7. Sepals rounded on back. Style long or rather long. 



9 POLYCARPAEA. 

 Sepals sharply keeled. Style short, 3 cleft. 



10 POLYCARPON. 



8. Leaves with scarious stipules. 7 SPERGULA. 

 Leaves exstipulate. 9. 



9. Styles 2 — 3, rarely 4 — 5, alternating with sepals. Fruit globose. 



5 STELLARIA. 

 Sytles 5, rarely 3 — 4, opposite sepals. Fruit cylindrical. 



6 CERASTIUM. 



1. DIANTHUS L. 



1. prostratus Jacq. Common. Coast and Midlands. 



2. scaber Thb. Drakensberg. 



2. SILENE L. 



1. burchelli Ott. Common. Coast to Drakensberg. 



2. capensis Ott. Drakensberg. 



3. galiica L. Introduced. 



4. thunbergiana E. & Z. Durban. 



3. CORRIGIOLA L. 



littoralis L. Coastbelt, often Ruderal. 



4. POLLICHIA Soland. 



campestris Soland. Ibisi, 2,500 ft. 



5. STELLARIA L 



media Cyrill. An introduced weed. 



6. CERASTIUM L. 



dregeanum Fenzl. Midlands and Drakensberg. Common. 



7. SPERGULA L. 



arvensis L. An introduced weed. 



8. DRYMARIA Willd. 



cordata Willd. Coastbelt and Midlands. 



9. POLYCARPAEA Lam. 



corymbosa Lam. Umhlanga, 500 ft. 



10. POLYCARPON Loefl. 



tetraphyllum L. Ruderal. 



FAMILY 46~NYMPHAEACEAE. 



Aquatic plants with submerged prostrate rootstocks, throw- 

 ing up leaves and flov/ers. Leaves floating, cordate. Flowers 



