18 MAI PRADOO 
MA] PRADOO is the name given to different kinds 
of Pterocarpi. Four kinds are to be found in Siam. Calyx 
campanulate, five-toothed. Legume nearly round, leafy 
margined, varicose one or more celled; cells one-seeded. 
Flowers pure yellow or white and fragrant, leaves alternate. 
The largest trees are some 6 m.in girth. The bark 
is of an olive grey colour. The wood is very hard, the 
sapwood is small. The heartwood hasa dark-red colour 
The pores variable, small and large with patches of pale 
tissue joined by irregular, pale, wavy interrupted bands 
of varying breadth. The medullary rays are fine, very 
numerous, uniform and equidistant. 
Pterocarpus Dalbergiodes is a large tree. .The 
wood is moderately hard, the sapwood grey and small 
but very large in young trees, the heartwood bright red, 
streaked with black and brown. The pores are mode- 
rate sized, filled with resin which gives an agreeable 
scent. The pores are surrounded by pale rings and 
joined by narrow wavy concentric lines, prominent on a 
vertical scale. The medullary rays are extremely fine, 
