140 Dunn — A Key to the Labiatae of China. 



Flowers from pale blue or white to dark red, June to January. 

 Forest, woods, scrub, damp shady places, grassy mountains.* 



Szechuen : W. China at 1200 ft. to 2800 ft., Wilson, 4376, 

 4377 ; Yangtze banks, W. China, Wilson, 4379. 



Hupeh : Ichang, Henry, 2926 ; Chang-yang, Henry, 7689, 

 Wilson, 2651 ; Mt. Omi, Wilson, 5120. 



Kweichow : Ko-te-pang-kaou, Esquirol, 214 ; Kouy-yang, 

 Bodinier, 2480. 



Yunnan : Ducloux, 266, 554 ; Maire, 313, 425, 647, 1293, 

 1582, 2030, 2344 ; mountains N. and S.E. of Mengtze, 5000- 

 6500 ft., Henry, 9042, 9043, 9073, 9796 , 9797, 9840, 10,071, 

 11,166, 11,266, 11,286 ; Mi-le district, Henry, IC071A, 10,072 ; 

 Yuen-chang at 3500 ft., Henry, 11,576 ; Szemao, W. Mountains, 

 at 5000 ft., Henry, 12,475 ; 12,581 ; Teng-yueh, Howell, 26 ; 

 Yangtze Valley between Tzu-ko and Shih-ku at 6000-7000 ft., 

 Forrest, 18 ; eastern flank of Tali range, Forrest, 6820 ; Yunnan- 

 sen, Bodinier. 



Kwangtung : Wong-yu, Tate ; Lo-fou-shan at 3100 ft., 

 Ford, 47 ; Lantao, Dunn ; Lienchow River, Matthew. 



8. Plectranthus discolor, Dunn in Notes Bot. Gard. Edin. 



xxxv, 155. 

 Flowers blue, August to October. 



Szechuen : Min Valley, 4000-9000 ft., Wilson, 4321, 4322 ; 

 between Ta-chien-lu and Chengtu, Hosie. 



9. Plectranthus leucophyllus, Dunn in Notes Bot. Gard. 



Edin. xxxvii, 157. 

 Flowers, July to October. 



Szechuen : Tung Valley, 1200 m„ Wilson, 4319 ; between 

 Ta-chien-lu and Chengtu, Hosie. 



10. Plectranthus rugosus, Wall. ; Fl. Brit. Ind. iv, 620. 

 Flowers white with rose or purple spots. 

 Szechuen : Ta-chien-lu, Pratt, 529. 



11. Plectranthus sculponiatus, Van. in Bull. Acad. Geogr. Bot. 



xiv, 167. 

 Flowers very fragrant, blue or dull yellow, sometimes with a 

 purple blotch on the lower lip, August to October. Moist 

 valleys, pine woods. 



Kweichow : Gan-pin, Bodinier, 1942. 



YUNNAN : Ducloux, 220 ; Maire, 26, 400, 520, 1609, 2023, 



2318 ; foot of mountains at Mengtze, Hancock, 430, Henry', 9235 ; 



Pu-erh at 4500 ft., Henry, 13,492; north of Tali-fu, ' 8000- 



* In shady places the flowers are paler, the leaves lamer and oft™ m „ r . 



