214 



1. A. spinosus, Linn. : Benth. Fl. Hongk. 284. A common 



roadside weed in Hongkong: Lan'tao Island, Hongkong 

 Xew Territory ; fields near Swatow ; ]\lacao. Fl. pink, 

 April — August. 



2. A. mangostanus, Linn. ; Hook. f. Fl. Brit. Ind. iv. 720. At 



Wuling near Chaochaiifu. Fl. white, April. 



3. A. viridis, Linn. ; Benth. Fl. Hongk. 284. A common weed 



in Hongkong : Canton. Fl. greenish, August. 



4. A. Blitum, Linn. ; Hook. f. Fl. Brit. Ind. iv. 721. At Wuling 



Village, near Chaochaufu. Fl. greenish, April. 



4.— CYATHULA. 



1. C. prostrata, Bliunc ; Benth. Fl. Hongk. 28o. Little Hong- 

 kong, East Point, and under trees in the Botanic Gardens, 

 Hongkong ; Lofoushan. Fl. green, October. 



5.— AERTJA. 



1. A. scandens, fFall. : Hook. f. Fl. Brit. Ind. iv. 727. Lienchow 

 River ; near the village of Saiuam on the North River. 

 Fl. white, December. 



6.— AGHYRANTHES. 

 Key to species. 



Bracteoles ovate, mucronate ... ... 1. asperu. 



Bracteoles acicular ... ... ... 2. hidentata. 



1. A. aspera, Linn. ; Benth. Fl. Hongk. 285. Common in waste 



places, Hongkong ; Pakhoi and elsewhere in Kwangtung. 

 Fl. green, October. 



2. A. bidentata, Blume ; Hook. f. Fl. Brit. Ind. iv. 730. Hill 



near Chaochaufu. Fl. greenish, April. 



7.— ALTERNANTHERA. 

 Key to species. 



Sepals thin and hyaline, glistening ... 1. nodijlora. 

 Sepals firm, rigid ... ... ... 2. sessilis. 



1. A. nodiflora, R. Br. ; Hook. f. Fl. Brit. Ind. iv. 732. Swatow 



district ; Cape Syngmoon, (Capsuimun), Hongkong New 

 Territory. Fl. white, . 



2. A. sessilis, R. Br. ; Benth. Fl. Hongk. 286. On roadsides 



and waste places, Hongkong ; river bank near Chaochaufu. 

 Fl. white, August. 



CHENOPODIACEAE. 



Key to genera. 



1. Stems climbing ... ... ... ... ,S. Bii.^rlhi. 



Stems erect or prosUate ... ... •). 



2. Leaves oylindric or stem shrubby ... 2. Si((tcdii. 

 Leaves flat ; stem herbaceous... ... 1. Chenopudium. 



