NEW OE RARE MALAYAN PLANTS. 25 



King, easily distinguished by its narrow leaves bright yellow 



beneath. 



A. costata, Korth. Verh. Nat. Geseh. Bot. 67. t. 6. A gigan- 

 tic tree with large buttresses and rather pale colored 

 bark. Leaves oblong coriaceous with a broad base blunt, 

 glabrous above with close yellowish brown tomentuin 

 beneath, nerves numerous close set about 25 pairs, and 

 reticulations distinct beneath, 1-6 inches long and 3 inches 

 wide, petiole H very rough. Panicles axillary and ter- 

 minal 6 inches long covered with scurfy wool in tufts. 

 Flowers J inch long yellow. Sepals lanceolate acuminate 

 densely pubescent. Petals glabrous lanceolate acuminate 

 mucronate. Fruit globular 1 inch through, tomentose, 

 wings two very large 7 inches long 1^ inch wide slightly 

 narrowed at the base and dilated a little upwards round- 

 ed at the tip, with three strong nerves running the whole 

 length and numerous transverse bars the other three 

 wings about 3 inches long very narrow with only 2 main 

 nerves. The whole fruit is light brown. Some magni- 

 ficent trees of this fine plant grow in the Garden Jungle 

 (Distrib. No. 6684) and in Dalvey ground. The leaves 

 in sunlight have a striking coppery yellow appearance 

 specially conspicuous when wind blows. I have it also 

 from Batu Tiga in Malacca collected by Holmberg under 

 the name of Mersawar Ular. It was originally described 

 from South East Borneo. I believe it is the chief source 

 of the timber commonly known as Mersawar which is in 

 quality like a rather inferior Meranti. 



A. glabra, Kurz. Flor. Fl. Brit. Burmah i. 112. 



A fine straight tree running to 100 feet high, with 

 dark brown bark. Leaves lanceolate acuminate base 

 rounded quite glabrous about 3-6 inches long and 1| inch 

 wide. The flowers are small and pubescent. The fruit 

 globular, about j inch through with linear wings 

 narrowed slightly at the base 34 inches long and J inch 

 wide with three strong ribs and transverse bars. It 

 occurs in the Garden Jungle (No. 6S86 fruit). 



R. A. Soc, No. 54, 1909- 



