75 



3.— MELILOTUS. 



1. M. macrorhiza, Pers. ; DC. Prodr. ii. 187. Abundant in places 

 along the West River. Fl. yellow, July. 



, ^ to ^ inch 



4.— INDIGOFERA. 



1. Leaflets, 3 , ... 

 Leaflets 5 or more ... , 



2. Flowers sessile, axillary, geraminate ... 

 Flowers in very short many-flowered 



racemes 



3. Terminal leaflet stalked 

 Teiminal leaflet sessile 



4. Flowers small- 

 Flowers larger ... 



5. Leaves nearly sessile, 5-9-£oliate 

 Leaves 9- 17-foliate, petiole ^ to 1 inch 



6. Leaflets under 1 inch ... 

 Leaflets over 1 inch 



7. Pods curved 

 Pods straight ... 



8. Plant hirsute with reddish hairs 

 Plant glabrous or nearly so ... 



9. Leaflets reticulate 

 Leaflets smooth 



2. 

 4. 



1. chinensis. 



3. 



2. trita. 



3. trifoliata. 



5. 

 8. 



4. endecaphylla. 



6. 

 7. 



5. atropurpurea. 



6. Anil. 



7. tinctoria. 



8. hirsuta. 



9. 



9. venulosa. 

 10. decora. 



1. I. chinensis, Vogel; Walp. Kep. i. 669. Near Macao. Fl. 



— — , Spring ? 



2. I. trita, Linn.f. ; DC. Prodr. ii. 232. Canton. Fl. red, . 



3. I. trifoliata, Linn. ; Baker in Hook. f. Fl. Brit. Ind. ii. 96. 



Canton and Lienchow River. Fl. purplish-red, August. 



4. I. endecaphylla, Jacq. ; Benth. Fl. Hongk. 76. Hongkong 



without locality ; Ngauchiwan, Hongkong New Territory. 

 Fl. pink, August. 



5. I. atropurpurea, Ham. ; DC. Prodr. ii. 225. Shiuhing Pass, 



W. River ; Fukwing, Canton River, near Hongkong. Fl. 

 dark red, May-June. 



6. I. Anil, Linn. ; Benth. Fl. Hongk. 77. On roadsides and 



other waste places, Hongkong ; Pakhoi. Fl. yellow, 

 , Spring ? 



7. I. tinctoria, Linn. ; Baker in Hook. f. Fl. Brit. Ind. ii. 99. 



Lantao Island and Lamtsun, Hongkong New Territory ; 

 Swatow ; Lienchow River. Fl. pink, May-September. 



8. I. hirauta, Linn. ; Benth. Fl. Hongk. 76. Wougneichong and 



Aberdeen-Pokfulam Road, Hongkong ; Castle Peak, 

 Hongkong New Territory ; Macao. Fl. red, September. 



9. I. venulosa, Champ.; Benth. I.e. 77. North side of Mt. 



Victoria and Mt. Gough, Hongkong ; Lantao Island, 

 Hongkong New Territory. Fl. reddish-lilac, April. 

 10. I. decora, Lindl.; Benth. I.e. 77. Hongkong without locality. 

 Fl. pink, Spring. 



