30 



2.— ARTABOTRYS. 



Key to species. 



Petals not contracted 1. honghongensis. 



Petals contracted above the base ... 2. odoratissimus. 



1 . A. hongkongensis, Nance ; A. Blumei, Hook, f . ; Benth. Fl. 



Hongk. 10. Happy Valley woods, Hongkong ; Lantao. 

 at 1500 ft. Hongkong New Territory. Fl. yellow, May. 



2. A. odoratissimus, R. Br. ; Benth. I.e. Near the Buddhist 



Temple, Causeway Bay, Hongkong ; Macao, cultivated. 

 Fl. yellow. May. 



3.— TJNONA. 



1. U. disoolor, Vahl; Benth. Fl. Hongk. 11. Common in 

 Hongkong; Tairaoshan, Hongkong New Territory; 

 Tai-iushan near Samshui. Fl. yellow, June. 



4.-P0LYATHIA. 



1. P. suberosa, Benth. ; Hook. f. Fl. Brit. Ind, i. 65. Pakhoi. 

 Fl. red-brown, April. 



5.-MEL0D0RUM. 



Key to species. 



1. Leaves downy below ... ... 1. Oldhami. 



Leaves glabrous ... ... ... 2. 



2. Leaves glaucous ... ... ... 2. glaueescens. 



Leaves brown below ... ... 3. Uonicum. 



1. M. Oldhami, Hemsl. Enum, PI. China, i. 27. Mt. Parker south, 



Hongkong ; Lantao, Hongkong New Territory ; Phoenix 

 Mountain and Yit-hai, Swatow. Fl. yellow, April. 



2. M. glauceseens, Hance in Journ. Bot. 1881, 112. Victoria 



Peak, Little Hongkong and Happy Valley woods, Hong- 

 kong, Fl. reddish, August, 



3. M. Tlonicum, Dunn in Journ. Bot. 1910, 323. Wongneichong- 



Taitam Road, Hongkong ; rocky ravines, Lantao Island, 

 Hongkong New Territory. Fl. yellowish green, April. 



MEN ISPEEMACEAE. 



Key to genera. 



1, Anthers on circumference of disk 4. Cyclea. 

 Anthers distinct, stalked ... 2. 



2, Leaves usually peltate ; flowers in 



umbels or heads 5. Stephania. 



Flowers in panicles or solitary ... 3. 



3, Anthers adnate ... ... ... 4. 



Anthers terminal globular, 4-lobed, 



style cylindric 2. Cocculus. 



4, Style 2-cleft ; leaves broadly ovate 3. Pericampylus. 

 Style flat ; leaves sagittate ... 1. Limacia. 



