TO LOWER SIAM. 221 



Cyperus haspan, L. Kedah, Alor Sta, Setul (14834), (14830. 

 14831). Common, both the dwarf form of dryer spots and 

 the elongate, much branched form of wet swamps. Dis- 

 trib. Cosmopolitan. 



C. pulcherrimus, Willd. Old paddy fields, Perlis, Kanga 

 (14825), Bangtaphan (Keith). 



Distrib. Indo-Malaya. 



C. diffusus, Vahl. Kedah, Alor Sta, (14832). 



Distrib. Cosmopolitan. 



C. bancamis, Miq. Setul Heaths (14833), Bangtaphan sea 

 shore (Keith). Distrib. Assam, Burma, Malaya. 



C. Iria, L. Perlis at Kanga, Cosmopolitan. 



C. stoloniferm, Hetz. Lankawi shore (Curtis). 



Distrib. Eastern Tropics. 



C. rotundas, L. Perlis at Kanga, Cosmopolitan. 



C. malaccensis, Lour. Common. Kedah, Alor Sta (14827). 

 Perlis, Kanga (14828), Lankawi, Kwala Malacca (Curtis). 

 Setul, very common in swamps. 



Distrib. Tropics, Asia. 



Mariscus dregeanus, Keith. Lankawi, Kwah (14813), sandy 

 heaths, ,Setul, (14812), Bangtaphan (Keith). 



In sandy spots usually near the sea. 



Distrib. Africa, Indo-Malaya. 



M. sieberiamus, Nees. var. evolutior, Perlis, fields near Bukit 

 Lagi, Kanga (14826). 



Distrib. Africa, to Polynesia. 



M. cyperinus, Vahl. Setul Heaths (14811), Bangtaphan by 

 Klong Thong river (Keith). 



Distrib. Tropical Asia and Polynesia. 



M. microcephalus, Presl. Perlis near Kanga. Distrib, Malaya, 



R. A. Soc, No. 59, tgil. 



