241 



30.— HOMOLANTHUS. 



1. H. Leschenaultianus, A. Juss. Tent. Euphorb. 50. Kwangtung 

 without locality. Fl. . 



31.— SAPIUM. 



Key to species, 



1. Leaves nearly orbicular ... ... 1. rotundifolium. 



Leaves elliptic or rhomboid ... ... 2. 



2. Leaves elliptic, acute at both ends ... 2. discolor. 

 Leaves rhomboid, acuminate .. . ... 3. sebiferum. 



1. S. rotundifolium, Hemsl. Enum. PL China, ii. 445. Lienchow 



River. Fl. Summer. 



2. S. discolor, Miiell.-Arg. ; Stillingia discolor. Champ, ; Benth. 



Fl. Hongk. 303. Hongkong without locality ; White 

 Cloud hills, Canton. Fl. May. 



3. S. sebiferum, Roxb. ; Stillingia sebifera, Michx. ; Benth. 1. c. 



302. Common in Hongkong ; Lantao Island, Hongkong 

 New Territory ; gardens near Chaochaufu. Fl. June. 



32.— SEBASTIANA. 



1. S. Chamaelea, Muell.-Arg. ; Hook. f. Fl. Brit. Ind. v. 475. 

 Lantao Island, Hongkong New Territory ; Macao. Fl. 

 August. 



33.— EXOOEOARIA. 



Key to species. 



Leaves 1-li inches broad ... ... 1. Agallocha. 



Leaves 3-4 inches broad 2. japoniea. 



1. E. Agallocha, Linn. ; Hook. f. Fl. Brit. Ind. v. 472. Estuary 



at Little Hongkong, and at Taitam Tuk, Hongkong ; 

 Tingkok, Hongkong New Territory. Fl. January — 

 December. 



2. E. japoniea, Muell.-Arg. ; Stillingia japoniea, Sieb. et Zucc. ; 



Benth. Fl. Hongk. 303. Hongkong without locality ; on 

 the bank of the Han Eiver, Swatow. Fl. May. 



URTICACEAE. 



Key to genera. 



1. Tree and shrub ... -.• ••• 2. 

 Herb ;• 12. 



2. Female flowers closely packed on or in 



receptacles ... ... ... ... 3. 



Female flowers separate • 8. 



21616 



