104 CYPEEACEJE. 



Series A. Rhachilla of spikelets not much winged. Leaves and bracts 

 long (except in C. malacccnsis). 



Annuals, or sometimes flowering the second year. 



Spikelets oblong or oblong-linear 12-25 mm. long 3 mm. 6 mm. 



broad C. compress. 



Spckelets linear 8 mm .-13 mm. long 1^- mm. broad C. Iria. 



Rhizome becoming woody, elongate stolons frequent. Large (or 

 middle-sized. 



Spikelets very narrow nearly filiformed 1 mm. broad. 



Leaves usually few, topmost erecit short green, sword-shaped, 



shortly caudate C. malaccensis. 



Leaves many, topmost spreading, long, much exceeding 



inflorescence C. distans, C. nutans, C. eleusinoidcs. 



(Note : I can not satisfactorily distinguish these three species one from another). 



Spikelets much broader oblong or linear never filiformed l 

 3 mm. broad. 



Spikelets broadly linear nearly 2 cm. long 2-3 mm. broad. .. 



C. prooerus. 



Spikelets oblong or linear narrower and shorter, not exceeding 

 S mm. in length. 



Glumes not imbricate, rhachilla hairy G. pilosus. 



Glumes densely imbricate, rhachilla glabrous. 



Xut oblong | mm. long C'. densespicatus. 



Nut clongatcly oblong nearly 1 mm. long 



C. media rubni. 



Scries B. Rhachilla of spikelets (usually conspicuously) winged. 



Tall. Stolons long, hardening into creeping rhizomes. Leaves short, 

 rarely 4 length of stem. Glumes approximate, closely imbricate.. 



C. tcgeti/ormis. 



Tall. Rhizome very short, woody ; stolons 0, i. e. lateral shoots from 

 base of stem immediately ascending. Glumes scarce! y imbricate in 



fruit C. Zottingeri. 



Tall or medium plants, stoloniferous or rhizome woody. Leaves and 



