156 



The Waterlilies. 



Geographic Distribution. South and East Africa; Madagascar; Comorro 

 Islands. Zeekoevley, Promontory of the Cape of Good Hope, and Zwartkops river at 

 Uitenhage, Thunberg 1800. Port Natal, Pretoria, L'oldstrom ; Hopefield, Delagoa Bay, 

 Albany, Semliki Valley; Zanzibar, Island of Nossi-be; Island of Johanna, Comorro. 

 Tananarivo ; Province of Emirna, Madagascar. 



i = inner. 



Mature Leaf Measurements. 



Stamen Measurements (in centimeters). 



Leaves from Small Tuber (centimeters). 



Leaf. 



First submerged.. 

 Second submerged 

 Third submerged . 

 Fourth submerged 

 First floating 



Length of 

 Midrib. 



i-3 

 1.6 



2.5 

 3-1 

 3-4 



Length, 



Apex 



to Angle. 



1-4 

 2.8 



3-9 



5-5 

 6.1 



Width. 



Sinus 

 Depth. 



1-3 

 1.8 

 2.9 



4-4 

 5-0 



Sinus 

 Width. 







0.8 



i-4 



2.3 



2.4 







1-5 



1.9 



2.1 



I.I 



Notes. The description of Thunberg is so brief that it is no wonder his name 

 was long neglected. It reads as follows : " N. foliis subpeltatis cordatis orbiculatis 

 integris, petalis lanceolatis calyce aequalibus." " Foliis integris " is only true of young 

 leaves. The synonymy given above will show how far this species has been confused 

 with the Egyptian N. caerulea. It is generally known in gardens at present as N. 

 scutifolia, sometimes as AT. caerulea. 



Planchon says of N. berneriana that the filaments are much broader and append- 

 age longer than in N. capensis, and N. emirnensis had the filaments shorter than in 



