241 



Cassia siamect. 

 Pterocarpus macfocarpus. 



Peculiar species of Sterculia. 



And above all are characterised by possessing many 

 different bamboos such as 



Bambusa Tulda. 



Bambusa polymorpha. 



Cephalostachyum pergracile. 



Dendrocalamus longispathus. 



Oxytenanthera albociliata. 



In the Burman deciduous forest area also are found the so- 

 called Eng, or In forests, usually on formations of latente. Dip- 

 terocarpus tuberculatus is here the most characteristic tree with 

 which occur the following : 



Pentacme suavis, 

 Shorea obtusa, 

 Dillenia pulcherrima, 

 Dalbergia cultrata, 



and others. The well-known Andaman Padauk tree, Ptero- 

 carpus dalbergioides, is found in the Andaman Islands, usually 

 in deciduous forests. 



221. These are found, as will be ( 3 ) Evei " 

 seen from the maps, in the wet region which has an annual 

 rainfall exceeding 70 inches. They are in their characteristics 

 the most essentially ' ' tropical ' ' of our Indian forests. They 

 are especially remarkable on account of the large number of 

 evergreen species which they contain, their luxuriant vegeta- 

 tion, and the enormous dimensions attained by some of 

 their trees. A rich growth of giant climbers (lianes) and of 

 epiphytes usually covers the stems of the trees, and the under- 

 growth is frequently so dense as to be practically impenetrable. 

 The number of species is very much greater than in the 

 deciduous forests. The general characteristics of this class of 

 forest are excellently described in the following passage : 



" In a tropical evergreen forest, growing under favourable 

 conditions, we find four storeys of vegetation. Immediately 

 covering the soil are seedlings mixed with shrubs and herbaceous 

 species and in the next zone, or storey, small, or medium-sized 

 evergreen trees 50 75 feet high. The top canopy of great ever- 

 greens, often 150 feet above the ground, is crowned by giant, 

 sometimes deciduous, trees, of which Tetrameles nudiftora is one 

 of the most common and remarkable. The tree stems are in 

 many instances covered with epiphytic Utricularias, Orchids, 



