315 



9. Leaves rather narrow, tapering or 



rounded at the base 



Leaves broad, cordate at the base 



10. Annual plant, erect, leafy 



Perennial plant ... 



11. Outer glume obtuse 

 Outer glume acuminate 



12. Outer glume 3-nerved 



Outer glume 5-nerved ... 



12a. Leaves at least -^^^ as broad as long ... 

 Leaves at least 20 times as long as 

 broad 



13. Outer glume equal to ^ of glume in 

 Outer glume equal to ^ or more of 



glume III 



14. Panicle 3 to 8 inches long 

 Panicle 1-2 feet long ... 



15. Leaves lanceloate, 4-10 inches long ... 

 Leaves ovate-lanceolate, 2 inches long 



1. P. patens, Linn. ; Hook. f. Fl. Brit. Ind. vii. 57. Happy Valley, 



Peak Road and Causeway Bay, Hongkong ; Castle Peak, 

 Hongkong New Territory. Fl. October. 



2. P. distachyum, Linn. ; Benth. Fl. Hongk, 410, Aberdeen, 



Hongkong. Fl, August. 



3. P. colonum, Linn. ; Benth. 1, c, 411. Mt, Kellet, Hongkong ; 



Castle Peak, and near Kowloon City, Hongkong New 

 Territory ; fields near Chaochaufu. Fl. April. 



4. P. CruB-galli, Linn. ; Benth. 1. c. 411. Paddy fields, Hongkong ; 



Canton ; Whampoa ; Macao ; Pakhoi. Fl. June, 



5. P, villosum, Lam. ; Hook. f. 1. c. 34. Wongmau Islands.; 



Canton ; Whampoa ; Macao. Fl, May to July. 



6. P. prostratum, Lam. ; Hook. f. 1. c. 33. Whampoa, Fl, . 



7. P. indicum, Linn. ; Benth. 1. c. 413. About Victoria and. Aber- 



deen, Hongkong ; Taimoshan, Hongkong New Territory ; 

 Chaochaufu, Swatow ; Pakhoi. Fl, April — July. 



8. P. nodosum, Kunth ; Benth. 1. c. 412. In the Happy Valley 



woods, Hongkong. Fl. January, 



9. P, psilopodium, Trin. ; Hook, f, 1, c, 46, Around Macao, Fl. — . 



10. P. humile, Nees ; Hook. f. 1. c. 48. Canton ; Whampoa ; 



Pakhoi. Fl, September, 



11. P. trypheron, Schult. ; Hook. f. 1. c. 47. Hongkong without 



locality ; Whampoa ; Macao. Fl. . 



12. P, sarmentosum, Roxb. ; Benth. 1. c. 412. In the wood behind 



the Buddhist temple, Causeway Bay, Hongkong. Fl, 

 December to February. 



13. P. repens, Linn. ; Benth, 1, c. 412, Aberdeen, Hongkong ; near 



Kowloon City, Hongkong New Territory. Fl. May. 



14. P. maximum, Jacq. ; Hook, f, 1. c. 49. Cultivated for fodder 



in Hongkong. Fl. May. 



15. P. montanum, Roxb. ; Benth, 1. c. 412. Hongkong without 



locality ; Kuntong, Hongkong New Territory ; near Chao- 

 chaufu ; Canton, Fl. April. 



