286 



4.-LIVIST0NA. 



1. L. chinensis, Mart. ; Hook. f. Fl. Brit. Ind. vi. 434. Cultivated 

 in Hongkong and Kwangtnng. Fl. yellow, March. 



5.— TRAOHYOARPUS. 



1. T. excelsus, H. JVcndl. ; Hook. f. 1. c. 436. Hills near Chao- 

 chaufn. Fl. yellow, April. 



6.— RHAPIS. 



1. R. flabelliformis, Ait. ; Benth. Fl. Hongk. 340. In the Happy 

 Valley woods, Mt. Victoria, Mt. Nicholson, and Mt. 

 Parker, Hongkong ; Taimoshan, Hongkong New Territory; 

 stream near Yit-hai village, Han valley. Fl. yellow, July. 



7.— CALAMUS. 



Key to species. 



1. Erect plant ... ... ... ... 1. thysanolepis. 



Climbing plant ... ... ... ... 2. 



2. Leaves with whip-like prolongation ... 3. 

 Leaves without whip-like prolongation 4. 



3. Leaflets more than 1 inch broad ... 2. latifolius. 

 Leaflets vmder 1 inch broad ... ... 3. Margaritae. 



4. Leaflets in fascicles ... ... ... 4. tetradactylus. 



Leaflets not in fascicles ... ... 5. Walkeri. 



1. C. thysanolepis, Hance in Journ. Bot. 1874, 265. Pokfulam, 



Taitum Tuk, and Mt. Kellet, Hongkong ; hill near Chao- 

 cliaufu. Fl. yellow, . 



2. C. latifolius, Roxb. ; Hook. f. Fl. Brit. Ind. vi. 455. In the 



Happy Valley woods, and in a ravine on the south side of 

 Wanchai Gap, Hongkong. Fl. yellow, . 



3. C. Margaritae, i/(2Mee in Journ. Bot. 1874, 266. Happy Valley 



woods, Mt. Victoria, Mt. Nicholson, Little Hongkong, 

 and above Taihang, Hongkong ; Swatow. Fl. yellow, 

 May. 



4. C. tetradactylus, Hance 1. c. 1875, 289. Very common in 



Hongkong ; Lantao Island, and Lamma Island, Hong- 

 kong New Territory. Fl. yellow, March. 



5. 0. Walkeri, Hance 1. c. 1874, 266. Happy Valley, Hongkong. 



Fl. yellow, July. 



8.— OOGOS. 



1. C. nucifera, Linn. ; Lour. Fl. Cochinch. 566. Cultivated in 

 Hongkong. Fl. yellow, . 



