x51 



1. S. oleraceus, Linn. ; Benth. Fl. Hongk. 194, In waste and 



cultivated places, Hongkong ; abundant weed in waste 

 places, Canton, Fl. yellow, March, 



2, S. arvensis, Linn. ; DC. Prodr. vii. 187. Hongkong without 



locality. Fl. yellow, , 



50.-LAUNAEA 



1. L. pinnatifida, Cass. ; Hook. f. Fl. Brit. Ind. iii. 416. Sheko, 

 Hongkong ; sandy seashore at Paksha in the extreme 

 south of Kwangtung. Fl. yellow, February, August. 



STYLIDIACEAE. 



1.— STYLIDIUM. 



Key to species. 



Leaves rosulate, orbicular ... ... 1. uliginosum. 



Leaves scattered, oblong ... ... 2. tenellum. 



1. S. uliginosum, Swartz ; Benth. Fl. Hongk. 195. In swampy 



ground on the hUls above Chaiwan, Hongkong ; Lantao, 

 Hongkong New Territory ; Swatow ; Pakhoi. Fl. white, 

 November. 



2, S. tenellum, Swartz ; C. B. Clarke in. Hook, f. Fl. Brit. Ind. 



iii. 420. Hongkong without locality ; swamps near 

 Hoifung, Fl, pink, October, 



GOODENIACEAE. 



1,— SCAEVOLA. 



Key to species. 



Leaves ligulate ; small under-shrub ,.. 1. hainanensis. 

 Leaves obovate ; large shrub ... ,., 2. Koenigii. 



1, S, hainanensis, Hance in Journ, Bot. 1873, 229. At Stanley, 



and Hoktsui, Hongkong ; Ngautaukok, Plovers' Cove 

 and Castle Peak, Hongkong New Territory. Fl, white, 

 January, 



2, S. Koenigii, Vahl ; S. Lobelia, Benth. Fl, Hongk. 198. Common 



on the south shores of the island, Hongkong ; Kuntong, 

 Hongkong New Territory. Fl, white, July. 



CAMPANULACEAE, 



Key to genera, 



1. Corolla irregular 2, 



CoroUa regular 3, 



2, Fruit a berry 2. Pratia. 



Fruit a capsule ... .,, ,,, ... 3. Lobelia. 



