62 



4. C. eantonensis, Hance in Journ. Bot,, 1885, 323. Lungtoyin 



on the North River. Fl. green, . 



5. 0. Hindsii, Benth. ; C. monospermus, Benth. Fl. Hongk. 63. 



In various parts of Hongkong ; Lantao Island and other 

 parts of Hongkong New Territory ; Macao ; Hoifung ; 

 Lofoushan. Fl. green, March. 



4.— ELAEODENDRON. 



1. E. japonicum, Franch. et Sav. in Enum. PI. Jap. ii. 315. 

 Stanley, Hongkong. 



Fl. white, January. 



5.— HIPPOORATEA. 



H. obtusifolia, Boxb. ; Benth. Fl. Hongk. 62. 

 and Taitam Road, frequent in Hongkong, 

 green, June. 



RHAMNACEAE. 



North Point/ 

 Fl. yellowish- 



Key to genera. 



1. Peduncles fleshy 

 Peduncles slender 



2. Fruit dry 



Fruit a drupe or berry 



3. Fruit peltate 

 Fruit samaroid ... 



4. Leaves three-nerved ... 

 Leaves penninerved 



5. Flowers sessile ; leaves less than 1 inch 

 Flowers pedicellate, or leaves over l^ 



inches 



6. Inflorescence terminal... 

 Inflorescence axillary ... 



7. Fruit oblong with one stone (if fruit 



not available see Rliamnus key) ... 

 Fruit globular with several pyrenes . . . 



8. Hovenia. 

 2. 

 3. 

 4. 



2. Paliurus. 

 1 . Ventilago. 



3. Zizyphus. 



5. 

 7. Sageretia. 



5. Berchemia. 



7. 



4. Microrhamnus. 



6. Bhamnus. 



1.— VENTILAGO. 



1. V. leiocarpa, Benth. Fl. Hongk. 67. In Pokfiilam valley and 

 below Taitam - Wongneichong catchwater, Hongkong ; 

 Lantao Island, Hongkong New Territory ; bank of Han 

 River, Swatow. Fl. greenish-white, May. 



3.— PALIURUS. 



Key to species. 



Fruit cup-shaped in section I. ramosissimus. 



Fruit button-shaped 2. hirsutus. 



1. P. ramosissimus, Poir. ; P. Aubletia, Benth. Fl. Hongk. 66. 



At Aberdeen, Hongkong; Samshuipo, Hongkong New 

 Territory ; Swatow ; Pakhoi. Fl. yellowish, June 



2, P. Mrsutus, Henisl. in Kew Bull. 1894, 388. Lienchow and 



North-west Rivers. Fl, , August. 



