148 



CASE Glitandray including rubber from C. henriquesiana, 

 75. Schum., a shrubby plant and one of the sources of root 

 rubber from Lower Guinea. 



This form of rubber is obtained by cutting the rhizomes 

 into small pieces and extracting the rubber therefrom by 

 pounding or beating. 



On the bottom shelf observe specimens of rubber from 

 the Gambia, probably yielded by Landolpliia Heudelotii, 

 A. DC., a shrub or climber of Tipper Guinea, and one of 

 the most valuable sources of West African rubber. Also 

 rubber from L. turhinata^ Stapf, Uganda, and portion 

 of root and rubber from L. ThoUonii, Dew., a dwarf 

 shrub of Lower Guinea and a source of root rubber. 

 The last compartment of this Case contains fruits, stems, 

 and rubber from various species of Landolpliia from 

 Tropical Africa. 



No. 362. Fruits, portions of stem and rubber from 

 Landolpliia oivariensis^ Beauv., a more or less scandent 

 shrub or tree widely distributed in Tropical Africa, and 

 one of the principal sources of African rubber. L, Klainei, 

 Pierre, a scandent shrub of Upper and Lower Guinea 

 and the principal rubber vine of the Gaboon district. L. 

 fiorida, Benth., a tall, climbing shrub widely distributed 

 in Tropical Africa. The fruits of this species are very 

 sour, but are eaten by the natives of the West Coast and 

 are known as Aboli. Opinions as to the economic 

 value of L, florida as a rubber producer are highly 

 contradictory. 



On a lower shelf observe fruits, portions of stem and 

 rubber from L. Kirkii, Dyer, a scandent shrub, and one 

 of the most important rubber plants of East Africa. Also 

 samples of rubber from Vahy {Landolj)liia madagas- 

 cariensiSj Bth. and Hook, f.), a climbing plant of con- 

 siderable size, and one of the sources of Madagascar 

 Rubber. 



CASE No. 363. Root Rubber from Carpodinus lanceo- 

 7g^ lata^ K. Schum., a glabrous perennial erect herb of 

 Lower Guinea and South Central Africa. This species 

 yields most of the root rubber of the Congo. 



No. 364. Fruits and Rubber of Mangabeira 

 {Hancornia speciosa, Gomez). A small tree native of 



