114 MESSRS. BAKER, MOORE, RENDLE, RIDLEY, AND WERNHAM. 



The general aspect of the Langbian hi]] region is probably 

 very like that of the Shan States. The pine woods which extend to 

 fifteen or twenty miles sonth of Djiring belong to the most southerly 

 forests of this kind in continental Asia. 



It is sometimes stated, even as recently as ] 913 (cf., Groom 

 and Rushton in Journ. Linn. Soc, Bol, XLI, pp. 458,484), that 

 Firms occurs in the Malay Peninsula. This is not known to be the 

 case even if we consider this peninsula to commence, as we must if 

 we want to be accurate, at the head of the Gulf of Siam, i.e., in lat. 

 N. 13° 30'. 



Pines are not recorded from Mt. Nwalabo near Tavoy in 

 Southern Tenasserim and are therefore unlikely to occur on Mt. 

 Myengmolekhat, 6,800 ft., a little further south and just within the 

 peninsular area. 



The species of Pinus and their distribution in Southern 

 Indo-China and the adjacent archipelago are : — 



Pinus Khasya North Tenasserim (Martaban) ; North Siam 

 (Chiengmai District); Annam. 



Pinus Merkusii North Tenasserim (Martaban; Sal win and 

 Thoungyin rivers); North Siam (Chiengmai district); Annam; 

 Cochin China ;* Philippines (Luzon and Mindoro) ; South-eastern 

 Borneo ; North Sumatra. 



Pinus insularis Philippines (Luzon); Timor. 



Under the circumstances the absence of Pimus from Java is 

 remarkable. 



MONOCOTYLEDONS. 



ORCHIDACEAE 



P.Y 



H. N. Ridley, C. M. G. ; F. R. S. 



1. Dendrorium secundum Wall. 

 Dran, 3-4,000 ft. " Crimson with orange lip, no leaves." 

 Distrih. Cochin China, Martaban, Malay Peninsula, Sumatra, 

 Java. 



*Not indigenous; but introduced from Annam. 



JOURN. NAT. HIST. SOC. SIAM. 



