125 



3— UNCARIA. 



1. U. Mrsuta, Haviland in iJourn. Linn. Soc. xxxiii. 88. In a 

 ravine south of Sheko Gap, Hongkong; Lantao Island, 

 Hongkong New Territory. Fl. white, April. 



4.-DUNNIA. 



1. D. sinensis, Tutcher in Journ. Linn. Soc. xxxvii. 70. 

 Fl. . 



5.— THYSANOSPERMUM. 



Sanning. 



1. T. diffusum, Champ.; Benth. Fl. Hongk. 146. Abundant on 

 Mt. Victoria, on Mt. Kellet, Mt. Nicholson, and at Taitam 

 Tuk, Hongkong ; hiUs near Chaouchaufu. Fl. white, 

 June. 



6.— WENDLANDIA. 

 1. W. panioulata, DC. ; Hook. f. Fl. Brit. Ind. iii. 39. Along 



the West River ; west of Canton. 



1, D. repens, Forst. ; 

 white, March, 



r.— DENTELLA. 

 Hook. f. 1. c. 42. 



Fl. white, March. 



Around Canton. Fl. 



8.— HEDYOTIS. 



Key to species of the genera Hedyotis, 

 Anotis (No. 10), Knoxia (No. 19), and Spermacoee (No. 32). 



1. Corolla lobes short, ovate or oblong 2 

 CoroUa divided nearly to base, 



lobes linear ... 



2. Inflorescence terminal 

 Inflorescence axillary, or leaves 



subulate 



3. Heads dense 

 Cymes paniculate ... 



4. Calyx teeth oblong 

 Calyx teeth deltoid ... ... l. 



5. Leaves glabrous ... ... ... 2, 



Leaves scabrous above, pubescent 



beneath 



6. Shrub 



Herb, sometimes woody at base .. 



7. Branches nearly round 

 Branches square ... 



8. Stem 4-winged 



Stem terete 



9. Inflorescence little exserted, pedun- 



cles short 

 Inflorescence much exserted,pedun. 



cleslong 22. 



21. 

 3. 



13. 



4. 



6. 



8. 

 H. capituligera. 

 H. uncinella. 



3. H. xanthochroa, 



4. H. lancea. 



10. 



9. 

 11. 



5. 

 24. 



6. H. Vachellii. 



