Dunn— A Key to the Labiatae of China. 143 



23. Plectranthus irroratus, G. Forrest ex Diels I.e. 228. 

 Flowers blue, July. Stony pastures and dry shady places 



among undergrowth in pine forests. 



Yunnan : eastern flank of Lichiang range, 9000-10,500 ft., 

 Forrest, 2507, 6143. # 



24. Plectranthus nervosus, Hemsl. in Journ. Linn. Soc. xxvi, 



272. 



P. moslifolius, Leveille in Fedde, Repert. Nov. Sp. ix, 247. 



Teucrium Mairei, Leveille. 



Flowers June to November. 



Hupeh: W. Hupeh, Wilson, 483A ; Ichang, Henry, 992 

 (type), 1055 (type), 2725 (type) ; Patung, Henry, 5105 (type). 



Kiangsu : Shanghai, Carles, 347, Maingay, 658. 



Kweichow : Pin-fa, Cavalerie, 587. 



Kwangtung : N. River, Ford, 25 (type) ; Lienchow River, 

 Matthew. 



Yunnan : Maire, 1615, 2483. 



25. Plectranthus Forrestii, Diels in Notes Bot. Gard. Edin. 



Flowers blue, July to August. Open mountain meadows 

 and grassy glades in pine forests. 



Yunnan : eastern flank of Lichiang range, 11,000 ft., 

 Forrest, 2851, 6243, 6462. 



26. Plectranthus amethystoides, Benth. ; Mel. Biol, ix, 424. 

 P. infiexus* Vahl. 



P. sinensis,^ Miq. in Journ. de Bot. Neerl. i, 115. 

 Flowers slaty blue, January to September. Rocky hills. 

 Shantung : Kiao-chow, Zimmermann ; Wei-hai-wei, Matthew. 

 Chekiang : Ningpo (Faber), Hongkong Herb. 333. 

 Fukien : Foochow, Carles, 679. 

 Kiangsi : Kewkiang, Bullock. 



Kwaxtgung : Canton, Sampson, 202, Hance, 10,531 ; 

 Fan-ling, Hongkong, Tutcher. 



Notes Bot. Gard. 



Flowers bright blue, June to August. Ledges of cliffs and 

 dry stony pastures. 



* P. infiexus, Vahl : this MS. name was taken up by Bentham in his Adden- 

 dum to the Monograph of Labiatae, but appears to be inseparable from P. ameihy- 



