1 88 Dunn— A Key to the Labiatae of China. 



46. Eriophyton, Benth. ; Fl. Brit. Ind. iv, 695. 

 Eriophyton Wallichianum, Benth. ; Fl. Brit. Ind. iv, 695. 



Flowers pale rose, September. Limestone rocks. 



Yunnan : eastern flank of Lichiang range at 13,000- 

 14,000 ft., Forrest, 2909, 6248. 



47. Microtoena, Prain in Hook. Ic. PI. xix, t. 1872. 



Calyx with narrow-lanceolate or triangular 



teeth ....... 



2. Bracts ovate ; calyx teeth equal . . . 1. Prcunia 

 Bracts filiform ; • upper calyx tooth much 



longer than the others . . . .2. urticifo 



3. Upper calyx tooth twice the others, ligulate 



(not subulate) . . . . .3. Delavi 



Upper calyx tooth about equal to the others 



4. Mid-lobe of the corolla lip ligulate ; calyx 



teeth triangular . . . -4- insua 



Mid-lobe ovate ...... 



1. Microtoena Prainiana, Diels in Engl. Jahrb. xxix, 556. 



Flowers yellow (?), September. 

 Szechuen : Nan-chuan, Rosthorn, 788/ 



2. Microtoena urticifolia, Hemsl. in Journ. Linn. Soc. xxvi, 



308. 

 Flowers yellow or white, July and August. 

 Szechuen\ W. China, Wilson, 4372 ; Paokang, Wilson, 

 2499. 



Hupeh : Patung, Henry, 2536, 7339. 



3. Microtoena Delavayi, Prain in Bull. Soc. Bot. Fr. xlii, 424. 



Flowers yellow, July to August. Dry shady places. 

 Hupeh : Paokang, Wilson, 2502. 



Yunnan : Ducloux, 757 ; Teng-yueh, Howell, 136 ; eastern 

 slope of Salween valley at 4000-5000 ft., Forrest, 1040. 



4. Microtoena insuavis, Prain. 



M. cymosa, Prain in Hook. Ic. PI. xix, t. 1872. 



M. Esquirolc and mollis, Leveille in Fedde, Repert. Nov. Sp. 



