710 BULLETIN DE L'HERBIER BOISSIER (2 me SÉR.). 1905 (2) 



Mr. Lindhard gives the following sketch of the counlry and the végétation 

 in Lhe Raheng District : 



« TJie Raheng District is situated at about 16° V* lat. N., and the 

 river-valley with the town lies about 400 feet above the sea-level. Il is 

 bounded on the western and southern side by mountains reaching a 

 height of about 5-8000 feet. The Ma-Ping River winds itself through lhe 

 middle of lhe dislrict, from North to South and East. Wang Ghow forest 

 with « the Wang Ghow creek » lies on the south-western bank of lhe 

 river, 16 miies below Raheng. The collection has taken place alongside of 

 this, on the places mentioned beneath. 



« The district may, as regards climate, mosl appropria tely be compared 

 lo that op Lower Burma. The rainfall, however, is much smaller here in 

 Wang Chow forest, in as much as the boundary-mountains break the 

 free passage of the south-western Monsum. 



« The reasons are very marked, dry in thewinter-sixmonths,andwetin 

 summer. The rain commences in March or April; after a few so-called 

 Mango-showers some very intense thunder-showers occur, generally about 

 the close of April, and Ihen the rain continues all through lhe summer 

 with shorter ar longer intervais (1-4 weeks). The downpour is in June 

 and especially in July often comparatively sparing, but is almost always 

 extremely plentiful in September and Oclober. The rain closes about 

 November. 



« During the rainy period the atmosphère is moist and the sky often 

 cloudy. The température lies then normally between 80° and 90° F. 

 and Ihere is but little différence between day and night. The température 

 rises, however, preceeding rain after a dry period of short duralion, and 

 it falls distinctly after a considérable rainfall. 



« After the cessation of the rainy period, in November, the climate 

 présents great similarities to our Scandinavian September. The air is 

 high and clear, and the nights become cooler and cooler as lhe days go 

 by. Around New-year the température is down at about S0° F. Then 

 little by little the air becomes hazy and smoky, and the nights are 

 close. Gradually everything dries out, and lhe heat becomes more and 

 more unbearable. The température reaches in March and lhe beginning 

 of April up to more than 100° F. and not rarely does it reach 10o°-107° F. 



« The végétation is naturally extremely varyingaccording to the différent 

 seasons of the year and to the character of the soil ; especially it is decided 

 by lhe smaller or greater degree of moisture of the soil. In the higher 

 mountains may be found coniferous forests and meadows with stagnating 



