38 



2. Flowers minute, crowded in terminal 



spikes ... 



Flowers ^-l inch, in racemes 



1. Salomonia. 



2. Polygala. 



1.— SALOMONIA. 



Key to species. 



1. Leaves none 

 Leaves present ... 



2. Leaves cordate or orbicular 

 Leaves oblong 



1. aphylla. 



2. 



2. cantoniensis. 



3. ohlongifoUa. 



1. S. aphylla, Griff. ^ Hook. f. Fl. Brit. Ind. i. 207. Lofoushan. 



Fl. brown, August. 



2. S. cantoniensis, Lour.; Benth. Fl. Hongk. 44. In marshy 



fields, Hongkong; Lantao Island, Hongkong New 

 Territory ; Whampoa and Lofoushan. Fl. pink, August. 



3. S. oblongifolia, DC; Benth. 1. c. In fields, Hongkong; 



Hoifung. Fl. pink, September. 



3. 



2.— POLYGALA. 

 Key to species. 



Shrub or tree ... 



Herb sometimes a little woody at base ; 



bracts caducous 

 Flowers 1 inch long, in long drooping 



racemes 

 Flowers ^ inch long 

 Flowers ^ inch 

 Flowers \-^ 



inch 



4. Racemes or panicles terminal . 

 Kacemes axillary 



5. Racemes long, many-flowered. 

 Racemes short, few-flowered . 



6. Veins of leaves obsolete 

 Veins of leaves evident 



1. P. 



1. aureocauda. 



2. Wattersii. 



3. telephioides. 



4. 

 7. nimborum. 

 5. 

 6. 



4. ghmerata. 



5. hongkongensis. 



6. sibirica. 



aureocauda, Dunn in Kew Bull. 1911, 188. Mt. Gough, 

 Mt. Kellet and near the Taitam-Shaukiwan Road, Hong- 

 kong ; Taimoshan in Hongkong New Territory ; Kwaisin, 

 Hoifung. Fl. yellow, August. 



2. P. Wattersii, Hance in Journ. Bot. 1881, 209. Lienchow 



River. Fl. yellow, April. 



3. P. telephioides, Willd. ; Hook, f . Fl. Brit. Ind. i. 205. Little 



Hongkong ; Whampoa and Hoifung. Fl. — , September. 



4. P. glomerata, Lour. ; Benth. Fl. Hongk. 44. In open places in 



the Happy Valley woods, Hongkong ; Lienchow River, 

 Lofoushan and Sanning, Fl. pink and green, August. 



5. P. hongkongensis, Hemsl. Enum. PI. China, i. 60. Wongnei- 



chong Gap, Mt. Parker and Victoria Peak, Hongkone. 

 Fl. white ?, April. 



