RUBBER AND RUBBER PLANTING 17 



III. APOCYNACEAE. 



Alstonia sp. 



Carpodinus sp. 



Clitandra sp. 



Funtumia elastica, F. africana. 



Dyera. 



Hancornia speciosa. 



Landolphia Kirkii, L. Dawei, L. owariensis, 



L. Heudelotii, L. Thollonii, etc. 

 Leuconotis sp. 

 Mascarhenasia elastica. 

 Parameria glandulifera. 

 Urceola esculenta. 

 Willughbeia sp. 



IV. ASCLEPIADACEAE. 



Cryptostegia grandiflora. 

 Raphionacme utilis. 



V. COMPOSITAE. 



Parthenium argentatum. 



AMERICAN SPECIES. 

 Hevea brasiliensis y Para Rubber. 



About 21 different species of Hevea are found in the 

 Amazon region of North- West Brazil. Of these Hevea 

 brasiliensis is the most important, and furnishes the 

 highest quality of rubber. 



L. 2 



