198 



Descriptions of Malayan Plants. 



however, can only be determined by an accurate examination 

 of the ovaries and fruit of the various plants at present 

 ranged under Tonsella. 



In the natural arrangement Salacia undoubtedly bears the 

 greatest affinity to Hippocratea, it being scarcely possible to 

 distinguish the two genera when only in flower. It also 

 agrees in many particulars with the Celastrinae, but differs 

 in having exalbuminous seeds. The union of the Hippocra- 

 ticeae and Celastrinae has, however, been suggested by Mr. 

 Brown in his remarks on the Botany of Terra Australis. 

 Under the above view the genus will be characterized as 

 follows : 



Calyx inferus 5-fidus. Corolla 5-petaIa. Stamina 3, 

 disco carnoso inserta. Ovarium 3-loculare, loculis 1 — 2 

 sporis, ovulis axi affixis. Bacca 1 — 3 sperma. 



Frutices vel arbusculae, foliis suboppositis simplicibus. 



I have met with two species in Sumatra, one with anthers 

 sessile on the nectary, which agrees very nearly both with 

 S. chinensis and Roxburgh's /. salacioides : the other with 

 anthers supported on filaments, and nearly related to /. 

 Coromandeliana, Roxb, 



XXIX. OCHNACEiE. 



GOMPHIA SUMATRANA. ( W. J.) 

 Decandria Monogynia. 

 O. N. Ochnacece. 

 Foliis lanceolatis vel oblongo-ovalibus acuminatis obtuse 

 denticulatis nitidis subquinque nerviis, stipulis intrapetio- 

 laribus deciduis, paniculis terminalibus. 

 Sibooru. Malay. 

 Sumatra. 



