192 



3. U. racemosa, Wall. ; Benth. 1. c. 25t). Common in marshes, 



Hongkong ; Maonshau, Hongkong New Territory ; 

 Hoifung ; common at Macao. Fl. purple, August — 

 January. 



4. U. coerulea, Linn. ; Benth. 1. c. 256. In marshes at Yictoiia 



Peak, Cape d'Aguilar and elsewhere, Hongkong ; 

 Taimoshan at 1500 ft. Hongkong New Territory ; 

 Kwangtung without locality. Fl. blue, February — July. 



5. U. bidfia, Linn. ; Benth. Fl. Hongk. 256. Ditch on the 



Shaukiwan Road, Hongkong ; Taimoshan, Lowu, Hong- 

 kong New Territory ; Chaochaufu. Fl. yellow, September 

 — April. 



6. U. orbiculata, Wall. ; Benth. 1. c. 256. 



and on Mt. G^ough, Hongkong, 

 palate, October. 



7. U. Harlandi, Oliver in Benth. 1. c. 257. 



on Mt. Cough, on a damp rock above i'aitam reservoir, 

 Hongkong. Fl. , October. 



In the Happy VaUey 

 Fl. lilac with a yellow 



On a rock in a ravine 



GESNERACEAE. 



Key to genera. 



1. Perfect stamens 4 

 Perfect stamens 2 



2. Stem long leafy 

 Stem very short or none 



3. Capsule linear ... 

 Berry ovate 



4. Plant very woolly 

 Plant glabrous ... 



5. Calyx and corolla 4-merous 

 Calyx and coi'oUa 5-merous 



6. Corolla salver-shaped ... 

 Corolla campanulate or urceolate 



7. Capsule linear, more than 5 times as 



long as broad 

 Capsule oblong, not more than 4 times 

 as long as broad ... 



8. Capsule twisted... 

 Capsule straight 



9. Corolla urceolate-campanulate with 



5 erect triangular lobes 

 Corolla campanulate, bilabiate 



8. 



9. Hemihoea. 

 10. Boea. 

 9. 



6. Petrocodon. 



7. Didymocarpus, 



etc. 



1 .—AESCHYNANTHUS. 



Key to species. 



Leaves acuminate, cuneate, entire ... 1. acuminatus. 

 Leaves oblonp:, sub-obtuse at both 



ends, with a few teeth at top ... 2. apicidens. 



