183 



1. A. acuminatus, Wall.; A. bracteatus, 3eiTii}x. Fl. Hongk. 258. 



Trailing on rocks on Mt. Victoria and Mt. Gough, Hong- 

 kong ; Lantao Island and Taimoshan, Hongkong New 

 Territory. Fl. green, yellowish inside and reddish on the 

 edges, January, 



2. A. apipidens, Hance in Journ. Bot. 1883, 167. Taiping on 



the Lienchow Jfeiver. Fl. . 



2.— SiHYNGHOTEOHUM. 



1. R. ellipticum, A.DC. ; Ckrke in Hook. f. Fl. Brit. Ind. iv. 

 373. Lienchbw Riter ; North River. Fl. rose-purple, 

 August. 



3.~OREOOHARIS. 



Key to species. 



1. Leaves with raised woolly reticulations 



beneath ... ... ... ... 1. Benthami. 



Veins of leaves not conspicuously re- 

 ticulated ... ... ... ... 2. 



2. Leaves regularly crenate ... ... 3. 



Leaves entire ...- ... ... ... 2. Jilipes. 



3. Flowers salver-shaped ... ... ... 3. Auricula. 



Flowers campanulate ... ... ... 4. fokienensis. 



1. 0. Benthami, Clarke; Didymocarpus Oreocharis,. Hance; 



Maxim, in Mel. Biol. ix. 369. Grassy places among rocks 

 on High West, Hongkong ; Lantao Island, Hongkong 

 New Territory ; Hoiiung ; White Cloud hills. Canton ; 

 Lienchbw River ; Namfong River ; Tingushan near 

 Chaokingfu, West River. Fl. purple, August. 



2. 0. filipes, Hance in Journ. Bot. 1883, 166. Beneath over- 



hanging rocks in the defile of Yeungtin, Liencho^v River. 

 Fl. . 



3. 0. Auricula, Clarke ; Didymocarpus Auricula, S. Moore in 



Journ. Bot. 1875, 229. Top of the Phoenix Mt., Swatow. 

 Fl. dark purple, April. 



4. 0. fokienensis, Franchet in Bull. Soc. Bot. Fr. xlvi. 212. 



Hoifung. Fl. pink, September. 



4.— PRIMULINA. 



1. P. Tabaoum, Hance in Journ. Bot. 1883, 169. Lienchow 

 River. Fl. purplish white, August — October. 



5.— BOURNEA. 



1. B. sinensis, Oliver in Hook. Ic. PI. t. 2254. Lofoushan 

 at 3000 ft. Fl. , September. 



6.— PETROOODON. 



1. P. dealbatus, Hance in Journ. Bot. 1883, 167. Near Tsinglin 

 on the Lienchow River. Fl. greenish white, October. 



31616 N 



