248 



2. A. hypargyraea, Hance ; Benth. Fl. Hongk. 325. Mt. Gough 

 and Mt. Kellett, Hongkong ; Kowloon ; Lantao Island, 

 Hongkong New Territory ; Canton. Fl. June. 



16.— URTIOA. 



1. U. cordatifolia, Steud. ; Walp. Ann. iii. 411. Hongkong 

 without locality. Fl. . 



17.— FLEURYA. 



1. F. interrupta, Gaud. ; DC. Prodr. xvi. i. 74. At the foot of 

 Mt. Gough, and in damp waste places near the Botanic 

 Gardens, Hongkong. Fl. September. 



18.— PILE A. 



Key to species. 



1. Leaves entire ... ... ... ... 2. 



Leaves crenate or serrate ... ... 3. 



2. Nerves obscure, leaves orbicular, fleshy 1. crassifolia. 

 Leaves penninerved ... ... ... 2. muscosa. 



3. Leaves peltate ... ... ... ... 3. peltata. 



Leaves not peltate ... ... ... 4. 



4. Leaves small, crenate ... ... ... 4. peploides. 



Leaves large, serrate ... ... ... 5. Wightii. 



1. P. crassifolia, Hance in Journ. Bot. 1882, 294. Lienchow 



River. Fl. December — March. 



2. P. muscosa, Lindl. ; P. microphylla, Liebm. ; DC. Prodr. xvi. 



I. 105. A common weed on old walls, Hongkong ; Macao. 

 Fl. Summer. 



3. P. peltata, Hance ; DC. 1. c. 131. Cockscomb Rocks, West 



River ; Lienchow River. Fl. December. 



4. P. pelploides, Hook, et Am. ; DC. 1. c. 109. A common weed 



in gardens, Hongkong. Fl. May. 

 b. P. Wightii, Wedd. in DC. 1. c. 125. Lantao Island, Hong- 

 kong New Territory. Fl. September. 



19.— LEOANTHUS. 



I. L. Wightii, Wedd. ; Hook. f. Fl. Brit. Ind. v. 559. 

 Fl. August, 



20.— PELLIONIA. 



Key to species. 



1. Leaves obtuse in outline 

 Leaves acute in outline 



2. Stem creeping ; leaves acute ... 

 Stem suberect ; leaves acuminate - ... 



3. Male cymes with peducles 2-3 inches 



long 

 Male cymes with peduncles i inch long 



Lofoushan. 



1. brevifolia. 

 2. 



2. radicans. 

 3. 



3. Griffithiana. 



4. scabra. 



