382 FORESTRY OF WEST AFRICA. 



Apocynace^. 



White Rubber Vine, "Abo" of the Niger {Lan- 

 dolphia owariensis, Beauv.). — The genus Landolphia 

 was founded upon specimens of this species collected 

 in Oware by Palisot de Beauvois, and it extends from 

 Sierra Leone, where it was collected by Don, to 

 Angola, from which Kew possesses specimens from 

 Welwitsch and Monteiro. It was collected on the 

 Niger by Barter, and near the mouth of the Congo 

 by R. C. Phillips (who states that it bears the native 

 name of " Mvoochi "). A form not specifically dis- 

 tinguishable was found by Schweinfurth in North 

 Central Africa. He remarks (' Heart of Africa,' i., 

 p. 192) that "it is well known in the Guinea trade 

 for its production of caoutchouc." From the fruit, 

 "the sourness of which exceeds that of the citron, 

 the natives of Djurland manufacture a beverage 

 refreshing as lemonade." — ' Report of the Royal 

 Gardens at Kew,' 1880, p. 38. 



Landolphia Mannii, sp. n. — A very distinct spe- 

 cies collected by Gustav Mann at Corisco Bay (Lat. 

 1° N.), and not at present known from any other 

 locality. Mann describes it as a climber twenty feet 

 high, and yielding caoutchouc. — ' Report of the Royal 

 Gardens at Kew,' 1880, p. 39. 



Mbungu Rubber Plant {Landolphia florida, Bth.) 



