296 



11. C. eleusinoides, Kunth: C. B. Clarke 1. c. 608. Stonecutters' 



Island ; Port Shelter, Hongkong New Territory ; Canton. 

 Fl. July. 



12. C. procerus, Rottb. ; C. B. Clarke 1. c. 610. Stonecutters' 



Island, Hongkong ; Kwangtung without locality. Fl. July. 



13. C. Zollingeri, Steud. ; C. B. Clarke 1. c. 613. Hongkong 



without locality ; Whampoa ; Macao. Fl. . 



14. C. radiatus, Vahl ; C. B. Clarke 1. c. 617. In a pool outside 



N.E. gate. Canton. Fl. September. 



15. C. exaltatus, Ret:. ; C. B. Clarke 1. c. 617. Canton. Fl. 



October. 



16. C. tegetiformis, Roxb. ; C. B. Clarke 1. c. 612. Near Sheko, 



Hongkong ; Taipo and Castle Peak, Hongkong New 

 Territory ; Whampoa ; Macao. Fl. July. 



17. C. rotundus, Linn. ; Benth. 1. c. 387. Pokfulam and Aberdeen, 



Hongkong ; Castle Peak, Hongkong New Territory ; 

 Canton ; Macao ; Pakhoi. Fl. August. 



18. C. stolonifer, Retz. ; C. B. Clarke 1. c. 615. Macao. Fl. 



November. 



4.— MARISOUS. 



Key to species. 



Spikelets clustered 



Spikelets spicate 



Spikelets loose, turgid ; nuts 3-6 



Spikelets crowded, subulate ; nuts, 1-2 



Umbel rays ultimately straight 



Umbel rays ultimately curved 



microcephalus. 



2. 

 albescens. 



3. 

 Sieberianus. 

 cyperinus. 



1. M. microcephalus, Presl ; C. B. Clarke in Hook. f. Fl. Brit. 



Ind. vi. 624. In a ditch near the N.E. parade ground. 

 Canton ; Lofoushan. Fl. September. 



2. M. albescens, Gaud. ; Gyperus pennatus, Benth. Fl. Hongk. 



387. Pokfulam village green and Aberdeen, Hongkong ; 

 Macao. Fl. July. 



3. M. Sieberianus, Nees ; C. B. Clarke 1. c. 622. In grassy places, 



Hongkong without locality. Fl. April to July. 



4. M. cyperinus, Vahl ; Cyperus umbellatus, Benth. 1. c. 386. 



Aberdeen, Hongkong ; Macao ; Lienchow River. Fl. 

 August. 



5.— KYLLINGIA. 



Key to species. 



1. Nut-bearing glumes not winged in 



upper part of keel ... 

 Nut-bearing glumes winged above 



2. Keel setulose below 

 Keel smooth below 



1. motwcephala. 



2. brevifolia. 



3. triceps. 



1 . K. monocephala, Rottb. ; Benth. Fl. Hongk. 388. Common in 

 Hongkong ; Taimoshan, Hongkong New Territory ; 

 abundant weed in sandy soil, Canton ; iNliicao ; Pakhoi. 

 Fl. April — September. 



