36 <A SCIENTIFIC EXPEDITION TO TEMENGOH. 
curved acuminate, base prolonged, smaller ones nearly 
straight oblong obtuse, equal at both ends, shortly pro- 
longed at the base. Capsule elongate smooth, the papillae 
disappearing gradually narrowed to the base 4 inch long 
with 8 low ribs. 
This was collected by me on the Tahan river in 1891, 
(No. 2235) and at Bundi in Tringganu by Rostado. 
O. longifolia, n. sp. 
Glabrous. Leaves elongate lanceolate, long acuminate 
base obtuse, above minutely punctate, beneath paler, 
nerves 5 transverse neryules straight over 30 pairs, 
9-11 inches long, 2-3 inches wide, petiole 1% to 2 
inches long. Inflorescence sub-terminal 3 inches long, 
rachis slightly red scurfy, panicle little branched with a 
few short branches. Flowers small in cymes of 3, ovary 
longer than broad goblet-shaped glabrous 3% inch long. 
Sepals very short rounded ovate. Petals small oblong 
ovate. Stamens dissimilar 8, larger ones curved acu- 
minate to the top smaller cylindric, obtuse at both ends, 
shortly produced below, no dorsal process. Capsule urn- 
shaped smooth with 8 low distinct ribs, ¢ inch long. 
Sumatra, Kelantan river in Siak (Ridley) 1897. | 
This is very like O. rosea, Ridl., but has totally dif- 
ferent fruit. 
ALLOMORPHIA. 
This genus based on A. exzgwa, Bl., a native of the 
Malay peninsula, is distinct in its terminal panicle of 
small flowers with eight similar stamens, a urn-shaped 
capsule, dehiscing at the apex without large valves 
erected during dehiscence. 
The species I would admit to it are :-— 
A. exigua, Bl. Malay peninsula. 
A. capilaris, Cogniaux, ms. Malay peninsula. 
Jour. Straits Branch 
