624 



XXXIII. RUBIACEAE 



Stephegyne parvifoUa : coppice measurements, Gorakhpur. 



2. Stephegyne diversifolia, Hook. f. Syn. Nauclea rotundifoUa , Roxb. 

 Vern. Binga, Burm. ; Hnawthein, U. Burm. 



A moderate-sized to large deciduous tree with large nearly orbicular 

 leaves, found in Burma, the Andamans, and Chittagong ; also in Java and 

 the Philippines. The tree is a very common one in the mixed deciduous 

 forests of Burma, both of the upper and of the lower type. In the lower 

 mixed forests on flat alluvial Igind it is often found in great abundance. Thus 

 in the Thindawyo reserve in the Tharrawaddy district enumerations showed 

 it to be the commonest species in the forest, an average of 118 trees 3 ft. in 

 girth and over being counted per 100 acres. ^ The seeds are minute, like 

 those of 8. parvifoUa and Adina cordifolia, and a further study of the tree 

 wiU no doubt reveal points of similarity to those two species in matters relating 

 to reproduction. Natural reproduction is often abundant on alluvial ground 

 along rivers and streams. The Burma Forest Report for 1914-15 mentions 

 that natural seedlings appeared freely in the Yetkanzin reserve, Toungoo, 

 in an area where bamboos had flowered and which had been fire -protected 

 for many years and burnt when the bamboos flowered ; the reproduction 

 was the result of the burning, which would indicate that clear ground, as 

 in the case of S. parvifoUa and Adina cordifoUa, is a favourable factor. It 

 often comes up in abundance on abandoned cultivation. Mr. A. Rodger - 

 in 1916 enumerated a dense pole crop on an old taungya cultivated about 

 seventeen years previously in the Prome district of Burma. The enumeration 

 showed 1,150 stems per acre, of which 72 per cent, consisted of Stephegyne 

 diver sifoUa. 



4. NAUCLEA, Linn. 



Nauclea sessilifolia, Roxb. Syn. Adina sessiUfoUa, Hook. f. Vern. Tein- 

 kala, Burm. 



A large deciduous tree of Cachar, Chittagong, and Burma, occurring in 

 mixed deciduous forests. In Burma it is particularly common in some of the 

 lower mixed forests on flat alluvial gromid. Enumerations in the Thindawyo 

 reserve of the Tharrawaddy district showed that after Stephegyne diversifoUa 

 it was more plentiful than axij other species enumerated, showing an average 

 of 98 trees 3 ft. in girth and over per 100 acres.^ On flat alluvial ground by 

 rivers and streams natural reproduction often springs up in great quantity, 



^ Working Plan for the Satpok, Sitkwin, and Thindawyo Reserves, ThaiTawaddy, Burma, 



1906. 



- Ind. Forester, xlii (191G), p. 499. 



