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ew Ie om D. Don?; Hance in Journ. Bot. 1887, 
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Linn. Soc. xiv. 
Taimoshan, Hongkong New Territory. TL white, Mack 
. pullum, Salisb. ; Hook. f. Fl. Brit. Ind. vi. 360. ampoa 
cultivated ; Lienchow River. Fl. greenish-purple, April. 
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19.—PARIS. 
ER polyphy e. pet Hook. f. l. c. vi. 362.  Lantao Island on 
rocks at 1300 ft. , Hongkong New Territory ; top of the 
Phoenix ME 8s Swatow ; ; Lofoushan. Fl. greenish-yellow, 
February. 
20.—VERATRUM. 
. V. nigrum, Linn. ; Baker in Journ. Linn. Soc. xvii. 472. Mt. 
Parker north, Hongkong ; Lantao Island, Hongkong New 
Territory. Fl. dark purple, August. 
PONTEDERIACEAE. 
Key to genera. 
Plant floating, with inflated oes s. 1, Meho ma: 
Plant not float ing ... 2, Monochoria. 
1.—EICHORNIA. 
E. speciosa, Kunth ; E. crassipes, Solms in DC. Monogr. Phan. 
iv. 527. tivated in Hongkong and Canton ; Swatow ; 
abundant in ditches about Macao. FI. pale blue, Summer. 
2.—MONOCHORIA. 
Key to species. 
ot 
Leaves hastate .. 
. hastaefolia. 
Leaves cordate or r ovate. 2. 
Leaves ovate 2. vaginalis. 
Leaves 3-4 inches across 3. ovata. 
Leaves 2 inches across 2, vaginalis. 
. M. hastaefolia, Presl; Hook. f. Fl. Brit. Ind. vi. 362. Hong- 
kong New Territory without locality; Hoifung; Whampoa; 
F atshan; desine: River: Lofoushan. FI. blue, September. 
M. vaginalis, Presl; Benth. Fl. Hongk. 374. Common in 
swamps, Hon kong ; ; Hoifung; Szetseshan, Sanning. 
. ptember. 
M. ovata, Kunth, Enum. Pl. iv. 665. Canton. Fl. —. 
