261 



3. Leaves 1 or 2, 5-nerved, 6 inches long, 



f inch, broad ... ... ... 2. chloroxantha. 



Leaf 1, 3-nerved, 5 inches long, 1 



inch broad ... ... ... ... 3. plicata. 



4. Pseudobulbs small, underground ... 4. odorata. 

 Pseudobulbs 2 or 3 inches long or more 5. nervosa. 



1. L. longipes, Lindl. ; Benth. Fl. Hongk. 352. In clefts of 



rocks on Victoria Peak, Mt. Nicholson and Mt. Parker, 

 Hongkong ; Taimoshan, Hongkong New Territory ; 

 Lofou^han. Fl. yellowish- white, September. 



2. L. chloroxantha, Hance in Journ. Bot. 1883,23!. Mt. Parker, 



Hongkong ; Maonshan, Hongkong New Territory ; top of 

 Phoenix Mt., Swatow. Fl. yellowish-green, December — 

 March. 



3. L. plicata, Franch. et Savat. Enum. PI. Japon. ii. 509. Hong- 



kong without locality. Fl. yellowish-green, . 



4. L. odorata, Lindl. ; Benth. Fl. Hongk. 352. Hongkong 



without locality ; Lantao Island and Kowloon City Gap, 

 Hongkong New Territory. Fl. yellow, June. 



5. L. nervosa, Lindl. ; Benth. 1. c. 352. In clefts of rocks, 



Victoria Peak, and on Mt. Parker, Hongkong ; Maonshan, 

 Hongkong New Territory ; by streams on the slopes of 

 the Phoenix Mt., Swatow. Fl. greenish-purple, April. 



3.— DENDROBIUM. 



Key to species. 



1. Flowers rose-coloured or partly so ... 2. 

 Flowers white, green or yellow ... 3. 



2. Flowers rose-coloured; pseudobulbs 1 ft. 



long or more ... ... ... 1. aduncum. 



Flowers rose and yellow ; pseudobulbs 



less than 6 inches long ... ... 2. Loddigesii. 



3. Flowers white and green ... ... 3. moniliforme. 



Flowers yeUow ; pseudobulbs short, 



thick ... ... ... ... 4. aggregatum. 



1. D. aduncum, Wall. ; Hook. f. Fl. Brit. Ind. v. 730. Lienchow 



River ; Lofoushan. Fl. rose-coloured, June. 



2. D. Loddigesii, Rolfe in Gard. Chron. 1887, ii. 155. 150 miles 



northwest of Canton, on rocks. Fl. rose and yellow. May. 



3. D. moniliforme, Sw. ; JEpidendrum monile, Thunb. Fl. Jap. 30. 



By streams on the slopes of the Phoenix Mt., Swatow. 

 Fl. white and green, April. 



4. D. aggregatum, Roxb. ; Hook. f. Fl. Brit. Ind. v. 749. 



Lofoushan. Fl. yellow, June. 



4.— BULBOPHYLLUM. 



Key to species. 



1. Pseudobulbs H to 2 inches long; scape 



1-flowered ... ... ... ... 1. Watsonianum. 



Pseudobulbs i to 1 inch long; scape 



several-flowered ... ... ... 2. 



