203 



7. C. formosana, Rolfe in Journ. Bot. 1882, 358. Taipo, Hongkong 



New Territory ; near Chaochaufu. Fl. purple, April, 



8. 0. rubella, Lindl. ; Benth. Fl. Hongk. 271. At Cfhaiwan, 



Hongkong ; Lantao Island and Taimoshan, Hongkong 

 New Territory ; hedges near Chaochaufu ; Sanning ; 

 Lienchow River. Fl. purple, May — August. 



9. 0. brevipes, Hance in Ann. Sci. Nat. s^r. 5. v. 233. Happy 



Valley, Hongkong ; Lantao, Hongkong New Temtory ; 

 foot of Phoenix Mountain, Swatow. Fl. , June. 



6.-PREMNA. 



Key to species. 



Leaves glabrous ... ... ... 1. integrifolia. 



Leaves tomentose beneath ... ... 2. Fordii. 



1, P. integrifolia, Linn. ; P. serratifolia, Linn. ; Benth. Fl. Hongk. 



269. Taitam Tuk, Shaukiwan, and elsewhere, Hongkong; 

 low ground near Maonshan, and between Taipo and Fanling, 

 Hongkong New Territory ; Macao. Fl. greenish-yellow, 

 June. 



2. P. Fordii, Dunn sp. n., a speciebus affinibus foliis cordatis 



remota. 



Frutex erectus, ramulis hornotinis velutinis, cortice tandem 

 glabro. Folia opposita, cordato-ovata, acuminata, apice 

 obtusa, apiculata, 4-5*5 cm. longa, Integra, papyracea, 

 supra tenuiter, infra moUiter hirsuta ; venae 4-pares, 

 obscurae ; petioli 4-8mm. longi. Paniculae angustae, 

 terminales ; ramuli cymosi, nonnunquam in racemulos 

 densos elongati, bracteati. Flares albi flavique, 3mm. 

 longi. Calyx 1mm. longus, pubescens, in 5 dentes 

 triangulares obtusos tubo duplo breviores lobatus. Corolla 

 fere cylindrica, in lobos 4, superiores tubo 8-plo breviores 

 divisa, lobo inf eriore ceteris bis longiore. Stamina 4, in 

 medio tubo affixa, inferiora lougiora. Ovarium bUoculare, 

 loculis biotulatis, stylo paullo exserto bifido. Drupae 

 pyrena bilocularis. 



N.W. River, July 1890, Ford n. 250. Fl. white and yellow, 

 July. 



7.— GMELINA. . 

 Key to species. 



1. Calyx truncate 1. chinensis. 



Calyx with broad triangular teeth ... 2. 



2. Calyx ^ inch long 3. arborea. 



Calyx f inch long 2. hainanensis. 



1. Q-. chinensis, Benth.. Fl. Hongk. 272. Hongkong without 



locality ; Lantao Island, Hongkong New Territory. Fl. 

 yellow, June. 



2. 6. hainanensis, Oliver in Hook. Ic. PI. sub t. 1874. S.Kwang- 



tung ? Fl. purple with white edge, . 



3. S. arborea, Linn. ; Hook. f. Fl. Brit. Ind, iv, 581. Sanning. 



Fl. yellow, August. 



