288 



1— PINELLIA. 



1. P. tuberifera, Tenore; Engl, in DC. Monogr. Phan. ii. 566. 

 Bank of the Han River, Swatow. Fl. dark purple, May. 



2.— PISTIA. 



1. P. Stratiotes, Linn.; Hook. f. Fl. Brit. Ind. vi. 497. In 

 swamps at East Point, Hongkong ; Wuting village, near 

 Chaochaufu ; Whampoa. Fl. . 



3.— ARISAEMA. 

 Key to species. 



1. Inflorescence scapose ... ... ... 1. cordatum. 



Inflorescence not scapose ... ... 2. 



2. Leaves 3-sect ... ... ... ... 5. penicillatum. 



Leaves 5-10-sect ... ... ... 3. consanguineum. 



1. A. eordatum, N. E. Brown in Hemsl. Enum. PI. China, iii. 177. 



Lantao Island and Taimoshan at 2300 ft., Hongkong 

 New Territory. Fl. purple, April. 



2. A. penicillatum, N. E. Brown ; A. laminatum, Benth. Fl. Hongk. 



342. Victoria Peak, Hongkong. Fl. green and white. May. 



3. A. consanguineum, Schott ; Hook. f. Fl. Brit. Ind. vir 505. 



Lantao Island at 2000-3000 ft. Fl. greenish white, April. 



4.— TYPHONIUM. 



1. T. divaricatum Decne.; Arum divaricatum,ljmr\. ; Benth. Fl. 

 Hongk. 342. In the Botanic Gardens in damp, shady 

 places, Pokfulara, and elsewhere, Hongkong ; Tingushan 

 on the West River. Fl. deep purple, May. 



5.— AMORPHOPHALLUS. 



Key to species. 



Spadix longer than the spathe ... 1. variabilis. 



Spadix shorter than the spathe ... 2. Dvnnii. 



1. A. variabilis, Blume ; Benth. 1. c. 343. South of Sheko Gap, 



Hongkong ; Lantao Island, and Taimoshan, Hongkong 

 New Territory. Fl. greenish purple, AprU. 



2. A. Dunnii, Tutcher in Journ. Bot. 1911, 273. Mt. Parker 



south, Hongkong ; Lantao Island, Hongkong New 

 Territory. Fl. purple and green, March. 



6— COLOOASIA. 



1. C. antiquorum, Schott-, Hook. f. Fl. Brit. Ind. vi. 523. Bann- 

 ing ; cultivated on the Lienchow Kiver. Fl. pale yellow, 

 August. 



