208 



1. P. ternifolius, D. Don ; Hook. f. Fi. Brit. Ind. iv. 621. Open 



grassy uplands, Taipo Road, Taimoshan and Patsin, 

 Hongkong New Territory. Fl. white with pink spots at 

 base of upper lip, October — January. 



2. P. marmoritis, Hance in Journ. Bot. 1874, 53. On marble 



rocks of the " Seven Sisters " on the West River. Fl. 

 rose-coloured, July. 



3. P. Tatei, Hemsl. Enum. PI. China, ii. 274. Lienchow River ; 



Wongyu in waste ground. Fl. , December. 



4. P. carnosSolius, Hemsl. 1. c. 270. On the North River. Fl. 



whitish-purple, September. 



5. P. striatus, Benth. ; Hook. f. Fl. Brit. Ind. iv. 618. Lantao 



Island, Hongkong New Territory ; Lofoushan at 3000 ft. 

 Fl. rose, August — October. 



6. P. (Jerardianus, Benth. ; Hook. f. 1. c. 617. Along the Lien- 



chow River. Fl. white, October. 



7. P. sinensis, Miq. in Joum. de Bot. Neerl. i. 115. Faythong. 



Fl. . 



8. P. amethystoides, Benth. in DC. Prodr. xii. 61. Near Fanling, 



Hongkong New Territory ; low hiUs around Canton. Fl. 

 slate-blue, October. 



9. P. nervosus, Hemsl. Enum, PI. China, ii. 272. Lienchow 



River ; North River. Fl. blue, November. 



7.— HYPTIS. 



1. H. suaveolens, Poit. in Ann. Mus. Par. vii. t. 29. Deepwater 

 Bay, Hongkong ; Unui village, Hongkong New Territory ; 

 stream near Chaochaufu. Fl. blue, April. 



8.— POGGSTEMO^r. 



1. P. Championi, Prain in Kew Bull. 1908, 254. Mt. Parker, 

 Hongkong ; Lantao Island, Hongkong New Territory. 

 Fl pale purple, August. 



9.— DYSOPHYLLA. 



Key to species. 



1. Leaves 4-10 in a whorl 2. verticillata. 



Leaves 2-3 (rarely 4) in a whorl ... 2. 



2. Plant glabrous 3. Sampsoni. 



Plant hairy 1. auricularia. 



1. D. auricularia, Blume ; Benth. Fl. Hongk. 275. At Taitam 



Tuk, Hongkong ; Hahang and near Sanwai, Hongkong 



o n ^!!'.^T''*''o^ ' i^^^*"?? ' ^^^^°i- ^1- Pi^J^' We]'tember. 



2. D. verticillata, Benth.; Hook. f. Fl. Brit. Ind. iv. 639 



Hoifung ; around Canton and on the road to the White 

 Cloud hills ; Lienchow River. Fl. blue, October- 

 December. 



3. D. Sampsoni, Hance in Ann. Sc. Nat. ser. 5, v. 234. In damn 



places around Canton. Fl. pink, November. ' 



