26 



Cyperus distans, Linn. — F.B.I., vi. p. 607. 



Chiengmai, Doi Sootep, beside stream, 340 m., Kerr, 1937. 



Distr. Warm regions of both hemispheres. 



Cyperus eleusinoides, Kunth — F.B.I., vi. p. 608. 



Chiengmai, Doi Sootep, by stream in deciduous jungle, 400 m., 

 Kerr, 1180 ; edge of stream, 338 m., in clumps, Kerr, 1923 ; in 

 open marshy ground, 660 m., Kerr, 2640. 



Distr. Asia, Africa, Australia. 



Cyperus Haspan, Linn. — F.B.I., vi. p. 600 ; Williams, Bull. Herb. 

 Boiss., iv. (1904) p. 224 ; Hosseus, i. p. 458 et ii. p. 370. 



Chiengmai, Doi Sootep, in marshy ground, eng jungle, 500 m., 

 Kerr, 1895. 



Distr. Warm regions of both hemispheres. 



Cyperus Iria, Linn.— F.B.I., vi. p. 606 ; C. B. Clarke, 111. Cyp., 

 t. xiv. 



Chiengmai, coming up on recently deposited silt, 300 m., Kerr, 

 892 



Distr. Old World. 



Lao name, Yak dank ding (ex Ken'). 



Cyperus leucocephalus, Retz. — F.B.I., vi. p. 602. 



Chiengmai, Doi Sootep, deciduous jungle, 340 m., Kerr, 1849. 



Distr. Tropics. 



Cyperus pilosus, Vahl— F.B.I., vi. p. 609. 



Chiengmai, Doi Sootep, in swamps, 340 m., Kerr, 1930. 



Distr. Trop. Asia, Africa, Australia. 



Cyperus pulcherrimus, WiUd.— F.B.I., vi. p. 600; C. B. Clarke, 

 111. Cyp., t. x. ; Hosseus, i. p. 459 et ii. p. 370. 

 Chieng Dao, 350 m. (ex Hosseus). 

 Distr. India, Indo-China, Malaya. 



Cyperus radiatus, Vahl. — F.B.I., vi. p. 617. 

 Chiengmai, in swampy ground, 310 m., Kerr, 1921. 

 Distr. Asia, Africa, America. 



Cyperus rotundus, Linn. — F.B.I., vi. p. 614 ; Hosseus, i. p. 459 

 et ii. p. 370. 



Chiengmai, in rice fields, 300 m., Kerr, 1540b, abundant in 

 pastures, 300 m., Kerr, 2628 ; Wang Djao, Hosseus, 133a. 



Distr. Warm regions of both hemispheres. 



Lao name, ya m'niu mu (ex Kerr). 



Cyperus uncinatus, Poiret. 



Chiengmai, Doi Sootep, marshy ground, 330 m., Kerr, 2239a — 

 a single small specimen mixed with Fimbristylis schoenoides, Vahl. 

 Distr. China, Malaya, Africa, Australia. 



Cyperus Zollingeri, Steud.— F.B.I., vi. p. 613; C. B. Clarke, 111. 

 Cyp., t. xviii. 



Chiengmai, Doi Sootep, in mixed jungle, 340 m., Kerr, 1900. 

 Distr. Trop. Asia, Africa, and Australia. 



Mariscus Clarkei, Turrill, sp. n., affinis M. Sieberiano, Nees, sed 

 foliis longis flaccidis, carinis sectione transverso rotundatis, spicis 

 laxioribus differt. 



