109 



5. A. senegalensis, Lan}. ; Clarke 1. c. 570. In a swamp at East 



Point, Hongkong ; White Cloud hills near Canton. PI. 

 pink, February. 



6. A. baooifera, Linn. ; Clarke 1. c. 569. In paddy fields, Lamma 



Island, Hongkong New Territory ; Canton ; Pakhoi ; 

 North Eiver. Fl. pink, January. 



. 2.— WOODFORDIA. 



1. W. floribunda, Salisb. ; Clarke 1. c. 572. At the Shiuhing Pass, 

 West Eiver. Fl. , May. 



3.— LAWSONIA. 



1. L. inermis, Linn. ; L. alba. Lam. ; Clarke 1. c. 573. Pokfulam, 

 Hongkong ; Maonshan, Hongkong New Territory. Fl, 

 white, June. 



4.— LAGERSTROEMIA. 

 Key to species. 



1. Calyx glabrous... ... ... ... 2. 



Calyx tomentose ... ... ... 1. Fordii. 



2. Calyx i inch long ... ... ... 2. indica. 



Calyx 1^ inch long 3. suhcostata. 



1. L. Pordii, Koehne in Engl. Pflanzenr. Lythr. 262. Below the 



Pokfulam-Aberdeen Eoad near the sea, on cliffs at Cape 

 d'Aguilar and on hills above Repulse Bay, Hongkong ; 

 Lantao Island, Hongkong New Territory. Fl. white, July. 



2. L. indica, Linn. ; Benth. Fl. Hongk. 113. At the Happy Valley 



and near the Buddhist Temple, Causeway Bay, Hongkong ; 

 Macao ; on the banks of the North River. Fl. reddish- 

 purple, July. 



3. L. subcostata, Koehne ; L. microcarpa, Hance in Journ. Bot. 



1878, 107. Several trees 40 ft. high in the Little Hong- 

 kong woods, Hongkong; Lienchow River; Saichusan 

 near Canton, Fl. white, June. 



ONAGRACEAE. 



Key to genera. 



Stamens 8 ... ... ... ... ... 1. Ludioigia. 



Stamens 4-5 ... 2. Jussiaea. 



1.— LUDWIGIA. 



1. L. parviflora, Boxb. ; Benth. Fl. Hongk. 109. Hongkong 

 without locality ; Taimoshan and Three Fathoms Cove 

 Hongkong New Territory ; in wet cultivated ground, 

 Canton. PI. yellow, September. 



