323 



6. Spike with many pairs of spikelets ... 7. 

 Spike with 1-3 (4; spikelets 8. 



7. Spikes digitate or fascicled, lower ones 



longer than rachis of inflorescence 4, Ischaemum. 

 Spikes much shorter than rachis of 



inflorescence ... ... ... 5. inter medius. 



8. Stem 2-3 ft. high 6. micranthus. 



Stem 6-12 ft. high ... ... ... 7. assimilis. 



9. Stalked spikelet neuter, unawned ... 8. annulatus. 

 Stalked spikelet bisexual, awned ... 9. vagans. 



1. A. fastigiatus,iS'w.;Hook.f.Fl. Brit.Ind.vii.167. Macao. Fl.— . 



2. A. fragilis, R. Br.; Benth. Fl. Austral, vii. 535. French 



Island, Whampoa. Fl. September. 



3. A. brevifolius, Sw. ; Benth. Fl. Hongk. 423. Hongkong with- 



out locality ; Canton ; Whampoa. Fl. September. 



4. A. Ischaemum, Linn. ; Hook. f. 1. c. 171. Castle Peak, Hong- 



kong New Territory ; Canton ; Whampoa. Fl. October. 



5. A. intermedius, R. Br. ; A. Vachellii, Nees ; Benth. 1. c. 423. 



On roadsides at Aberdeen and Mt. Victoria, Hongkong ; 

 Macao. " Fl. August. 



6. A. micranthus, Kunth ; A. montanus. Benth. 1. c. 423. Hong- 



kong without locality ; Ngaushiwan, Hongkong New 

 Territory ; Canton ; Whampoa. Fl. August. 



7. A. assimilis, Steud. ; Hook. f. 1. c. 179. Upper slopes of the 



hills, Hongkong, without locality ; Canton ; White Cloud 

 hills, Canton. Fl. October. 



8. A. annulatus, Forsk. ; Hook. f. 1. c. 196. Hongkong without 



locality ; near Chaochaufu ; Canton. Fl. April. 



9. A. vagans, Rendle in Hemsl. Enum. PI. China, iii. 375. Eavine 



of the White Cloud hills. Canton ; Whampoa. Fl. Nov- 

 ember. 

 10. A. hirtifiorus, Kunth ; A. zeylanicus, Arn. ex Benth. 1. c. 423. 

 Aberdeen, Hongkong ; Cape Syngmoon (Capsuimun), 

 Hongkong New Territory ; dry hills near Canton ; 

 Whampoa. Fl. October. 



40.— YMBOPOGON . 



Key to species. 



Outer glume of sessile spikelet longi- 

 tudinally cleft in the centre ... 1. Scjioenanthus. 



Outer glune of sessile spikelet not 



longitudinally cleft in the centre ... 2. Nardus. 



1. 0. Schoenanthus, Spreng.; Andropogon Martini, Benth. Fl. 



Hongk. 424. Quarry Bay, Hongkong ; Lantao Island, 

 Hongkong New Territory ;' Canton ; Whampoa ; Macao ; 

 Lofoushan. Fl. August. 



2. C. Nardus, Rendle ; Andropogon Nardus, Linn. ; Hook. f. Fl. 



Brit. Ind. vii. 205. Mt. Victoria and Aberdeen, Hong- 

 kong ; Taimoshan, Hongkong New Territory ; Canton ; 

 Danes' Island, Whampoa ;Lienchow River. Fl. September. 



?i5ig X a 



