294 
1.—PYCREUS. 
Key to species. 
1. Leaf sheaths covering à of the stem... 1. sanguinolentus. 
Leaf sheaths at bottom of the stem only 2. 
2.. Glume with recurved exeurrent midrib 2. globosus. 
Glume blunt or ecd — . 3. 
3. Plant annual i et e. 3, pulvinatus. 
Plant perennial... 4. polystachyus. 
l. P. sanguinolentus, Nees; Cyperus Eragrostis, Vahl; Benth. 
Fl Hongk. 385. On the edges of paddy fields, Hongkong ; 
vere Peak, Hongkong New Territory ; Macao; Lofou- 
shan. ovember. 
2. P.globosus, Reichb. ; ; Cyperus des lt Kunth ; Benth. l. c. 385. 
A berdee een, Hong gkong ; Canton; Macao. SC 
) f FL bn 
near Hongkong ; Pakhoi; North River. : 
4. P. polystachyus, Beauv. ; Cyperus efter e Benth. I. c. 385. 
Vietoria Peak, East Point, and Pokful m, Hongkong; 
Stonecutters' Island ; Puedes Heupitong New Terri- 
tory ; DOR: Cantón : Macao; Lofoushan. Fl. June 
— Sept 
2.—JUNCELLUS. 
l. & aE C. B. Clarke in Hook. f. Fl. Brit. Ind. vi. 594. 
Canton: KL —— 
3.—CYPERUS. 
Kev to species. 
N 
1. Spikelets digitate or clustered 
dg e T or + subracemosely 
ispos 
2. oes strongly 1 mucron 
mes not mucronate or Nery shortly s 80 
PRA D 
3. Anad plant 
Tall perennial plant ^ 
4. Plant compressus. 
Plant small uncinatus. 
5. Umbel longer than stem. 
Umbel shorter than stem : 
6. Nut nearly equal to glume — ... 
Nut 4 the length of the glume 
8. Rachilla not or only narrowly winged : 
Rachilla distinctly and widely winged 15. 
9. Annual with xe stem oe 10. 
ae woody, sometimes very 
and often long 
short, cane 
stolons 
Bresse 
E 
ue 
i 
