MAI YANG. 25 
MAT YANG.—(Dipterocarpus turiinatus ) is an 
evergreen magnificent tree, 50-60 m. high. The characte- 
ristics of the Dipterocarpi are described in the foregoing 
account of the Mai Pluang and refer also to the Mai Yang 
Characteristics of the Mai Yang are further: Spikes 
axillary, drooping, leaves ovate oblong, glossy and ribbed. 
Body of the catyx without w.ngs, or angles. Anthers 
thirty, bristle- pointed. 
These trees grow along river banks and are con- 
spicuous in large groups between mixed jungle, ascending 
to a height of 1,000 m. abeve sea level. The heartwood is 
rough and of a red brown colour, the sapwood white. 
Medullary rays are of 2 kinds,broad and fine, a large number 
of the latter between each pair of the former, prominent 
and shining on aradial section. The wood is used by 
the natives for long dug-out canoes! (rua chala) and for 
house building, but does not resist the attacks of white 
ants. The average weight is 750 kg. per chin. ina dry 
state. P=527. 
The moderately hard wood is very resinous and 
floats well in a dry state. Long posts for the staging in 
