Dunn— A Key to the Labiatae of China. ig 



" 2. Leucosceptrum canum, Sm. ; Fl. Brit. Ind. iv, 699. 



Flowers rose-crimson, September. Shady river banks an 



forests. 



Yunnan : Yang-pi valley at 7000 ft., Forrest, 923 ; Mengtzi 

 6000 ft., Henry, 9397 & a. 



53. Ajuga, Linn. ; Fl. Brit. Ind. iv, 702. 



3. Corolla tube 2-3 times longer than the limb 

 Corolla tube less than half as long again as 



the limb .... 



4. Corolla tube 4 times as long as the calyx . 

 Corolla tube less than twice as long as the 



5. Plant stoloniferous ; stem densely pubescent 

 Stolons o ; stem subglabrous 



7. Leaves oblong, sessile ; bracts much ex- 



ceeding the flowers 

 Leaves ovate, stalked ; bracts shorter than 

 the flowers .... 



8. Leaves linear .... 

 Leaves spathulate .... 



9. Leaves membranous, not in a rosette 

 Lower leaves oblong spathulate in a rosette, 



subcoriaceous .... 



1. Ajuga macrosperma, Wall. ; Fl. Brit. Ind. iv, 703. 



Flowers blue, April. Mountain streams, wet places in woods. 



Yunnan : Mengtze, Hancock, 183 (5000-6000 ft.), Henry, 

 10,900 ; Man-pan, south of Red River at 4000 ft., Henry, 

 io*3>4 ; Szemao, Henry, 11,684, n,684A, b, c. 



2. Ajuga decumbens, Thunb. ; DC. Prodr. xii, 598. 

 Flowers white with a blue calyx, April to June. Dry stony 



ground. 



acteristic short blunt calyx teeth 

 The leaves of the Chinese forms 



oblong on the upper part, st; 



the Chinese specimens seen by me win 



ilender, prostrate, or ascending plants, 

 as they do in Europe. 



