165 



OLEACEAE. 



Key to genera. 



1. Fruit didymous 

 Fruit terete 



2. Leaves pinnate ... 

 Leaves simple ... 



3. Corolla tubular ... 

 Corolla polypetalous 



4. Inflorescence terminal 

 Inflorescence axillary 



1. JasDiinum. 



2. 



2. Fraxinus. 



3. 

 4. 



4. Chionanthus. 



5. Ligustrum. 



3. Osmanthus. 



1.— JASMINUM. 



Key to species. 



L Leaves simple ... 

 Leaves compound 



2. Leaves 3-nerved 

 Leaves penninerved 



3. Leaves glabrous 



Leaves softly pubescent beneath 



4. Calyx teeth 4-5 lines long 

 Calyx teeth 2 lines long 



5. Leaves orbicular-ovate ; inflorescence 



terminal 

 Leaves lanceolate; inflorescence axillary 



6. Leaves oval-rotund 

 Leaves lanceolate 



2. 

 3. 

 5. 

 4. 

 6. 



1. sinense. 



2. inornaiuvi. 



3. undulatum. 



4. subtriplinervB. 



5. laiirifolium. 



6. pachyphyllum, 



7. paniculatum. 



1. J. sinense, Z?e?ws/. Enum. PI. China, ii. 80. Swatow ; Lienchow 



River. Fl. white, August. 



2. J. inornatum, Hemsl. I. c. 78. Kwangtung without locality. 



Fl. white, August. 



3. J. undulatum, Ker ; Clarke in Hook. f. Fl. Brit. Ind. iii. 596. 



Hongkong without locality ; Whampoa ; Macao ; Pakhoi; 

 Lienchow River ; North River. Fl. white, August — 

 December. 



4. J. subtriplinerve, Blume ; Clarke 1. c. 596. Lienchow River ; 



North River. Fl. white, September — November. 



5. J. laurifolium, Roxh. ; Clarke 1. c. 597. On northwest of 



Mt. Victoria. Fl. white, April. 



6. J.pachyphyllum, liTeMiZ. Enum.Pl.China, ii. 79. Wongneichong, 



Hongkong ; Lantao Island and Taimoshan, Hongkong 

 New Territory ; North River. Fl. white, May. 



7. J. paniculatum, Roxb. ; Benth. Fl. Hongk. 2 14. Rather 



common in Hongkong ; Lantao Island, Maonshan and 

 Hahang on exposed hills, Hongkong New Territory. Fl. 

 white, July. 



