132 

 17.-DIPL0SP0RA. 



1. D. viridiflora, DC. ; Benth. Fl. Hongk. 157. In the Happy 

 Valley woods and on Victoria Peak, Hongkong ; Lantao 

 Island at 1500 ft., Hongkong New Territory ; Mil near 

 Chaochaufu ; Lof oushan. Fl. straw-coloured, April. 



18.— ANTIRRHOEA. 



1. A. chinensis, Benth. et Hook. ; Guetardella cMnensis, Champ. ; 

 Benlh, Fl. Hongk. 158. On Mt. Gough and Mt. Victoria, 

 Hongkong ; above Tungchung, Lantao Island, Hongkong 

 New Territory. Fl. yellow, May. 



19.— KNOXIA. 



See key to Hedyotis (p. 125). 



1. Z. eorymbosa, Willd.; Benth. Fl. Hongk. 164. Mt. KeUet, 

 Hongkong ; White Cloud hiUs, Canton ; Wongmau 

 Island. Fl. purplish, July. 



20.— IXORA. 



1. I. chinensis, Lam. j 1. stricta,'&o^h. ; Benth. I.e. 158. In the 

 woods behind the Buddhist Temple, Causeway Bay and 

 at Chaiwan, Hongkong ; common on hiUs in the Hongkong 

 New Territory ; Macao. Fl. orange-scarlet, June. 



21.— PAVETTA. 



1. P. indica, Linn. ; Hook. f. Fl. Brit. Ind. iii. 150. In the 

 Happy Valley woods, on Mt. Gough, on Mt. Victoria and 

 Taitam Tuk, Hongkong ; ]Maonshan, Hongkong New 

 Territory ; Hoifung ; Macao. Fl. white. May. 



22.— CANTHIUM. 



Key to species. 



Unarmed tree ; leaves 3 inches long, 



glabrous 1. didymum. 



Thorny shrub ; leaves 1 inch long, 



pubescent underneath ... .. 2. parvifolium. 



1. C. didymum, Gaertn. ; Benth. Fl. Hongk. 159. In the Happy 



Valley woods, Hongkong. Fl. white. May. 



2. C. parvifolium, Roxb. ; C. horridum, Benth. I.e. non Blume. 



Hongkong without locality ; hills near Sainam on the 

 North River. Fl. pale green with yellow centre. Summer. 



