211 



3, Leaves sub-entire ... ... ... 2. stenosiphon. 



Leaves coarsely crenate ... ... 5. leucodasys. 



4. Leaves cuneate at base ... ... Z. formosana. 



Leaves obtuse or cordate at base ... 4. indica. 



1. S. rivularis, Wall. ; Hook. f. Fl. Brit. Ind. iv. 670. Fields 



near Swatow ; Macao ; Lienchow River ; Saichushan nr. 

 Canton. Fl. blue, March — December. 



2. S. stenosiphon, Hemsl. Enum. PI. China, ii. 287. Lofoushan. 



Fl. lUac, July. 



3. S. formosana, N.E. Brown in Gard. Chron. 1894, ii. 212. 



Lantao Island, Hongkong New Territory. Fl. bluish, 

 October — December. 



4. S. indica, Linn. ; Benth. Fl. Hongk. 278. Common on the 



tops of hUls, Hongkong ; Lantao Island and Taimoshan, 

 Hongkong New Territory ; Swatow district ; White 

 Cloud hills. Canton ; Lienchow fliver. Fl. blue, March. 



5. S. leucodasys, Miq. in Journ. de Bot. Neerl. i. 116. Pukak. 



Fl. . 



20.— MIOROTAENA. 



1. M. cymosa, Prain ; Plectranthus Patchouli, Clarke in Hook. f. 

 Fl. Brit. Ind. iv. 624. Shuikwan River. Fl. yellow, 

 November. 



21.— ANISOMELES. 



1. A. ovata, R. Br. ; Benth. Fl. Hongk. 278. In damp ground 

 at Pokfulam, Hongkong ; Plovers' Cove, Hongkong New 

 Territory ; Hoifung. Fl. purplish, October. 



22.— STAOHYS. 



1. S. aaT^era, Michx. ; DC. Prodr. xii. 47L West River. Fl. 

 pink. May. 



23.— LEONURUS. 



1. L. sibiricus, Linn. ; Hook. f. Fl. Brit. Ind. iv. 678. Wongnei- 

 chong and Aberdeen, Hongkong; Plovers' Cove, Hongkong 

 New Territory ; Lienchow River. Fl. purple, July — 

 December. 



24.— LAMIUM. 



1. L. chinenses, Benth. in DC. Prodr. xii. 512. Tingushan on 

 the West River. Fl. white. May. 



25.— LEUOAS. 

 Key to species. 



1. Leaves ovate ... ... ... ... 1. mollis sima. 



Leaves linear ... ... ... ... 2. 



2. Plant pubescent or hispid 2. zeylanica. 



Plant glabrous or scabrous ... ... 3. linifolia. 



21515 O 2 



