150 



46.— CREPIS. 



1. C. japonica, Benth. Fl. Hongk. 194. Roadsides and waste 

 places, Hongkong ; common weed, Canton. Fl. yellow. Mar. 



47.— TARAXACUM. 



1. T. officinale, Web.; T. Dens-leonis, Desf. ; Benth. 1. c. 192. In 

 cultivated ground, Hongkong. Fl. yellow, April. 



48.— LAOTUOA. 



Key to species. 



1. Achenes compressed ... ... ... 6. 



Achenes cylindric ... ... ... 2. 



2. Stems creeping ... ... ... ... 4. 



Stems not creeping ... ... ... 3. 



3. Beak fine, half the length of achene ... 1. versicolor. 

 Beak short, thick .. ... ... 2. denticulata. 



4. Leaves pedatisect ... ... ... 3. repens. 



Leaves usually undivided ... ... 5. 



5. Leaves abruptly or hastately ovate ... 4. stolonifera. 

 Leaves obovate, entire or lyrate ... 5. debilis. 



6. Upper and lower leaves ovate... ... 6. elata. 



Upper leaves linear, lower pinnatifid 7. brevirostris. 



1. L. versieolor, Schultz-Bip. ; Ixeris versicolor, DC. ; Benth. Fl. 



Hongk. 193. Pokfulam conduit, Hongkong ; bill near 

 Chaochaufu. Fl. yellow, March-October. 



2. L. denticulata, Maxim. ; Ixeris ramosissima, A. Gray ; Benth. 



1. c. 193. Victoria Peak, Hongkong ; Lantao Island, 

 Hongkong New Territory ; Swatow ; Kwaisin, HoiEung. 

 Fl. yellow, March-November. 



3. L. repens, Maxim. ; Ixeris repens, A. Gray ; Benth. 1. c. 194. 



At Sheko, Hongkong ; Lamma Island, Hongkong New 

 Territory ; Pakhoi. Fl. yellow, January, August. 



4. L. stolonifera, Maxim, in Mel. Biol. ix. 364. At East Point 



and Sheko, Hongkong. Fl. yellow, April. 



5. L. debilis, Maxim. ; Ixeris debilis, A . Gray ; Benth. Fl, Hongk. 



193. On the seacoast without locality, Hongkong ; 

 Lantao Island, Hongkong New Territory; fields near 

 Swatow. Fl. yellow, AprU. 



6. L. elata, Hemsl. Enum. PI. China, i. 481. Swatow ; Sanning. 



Fl. yellow, July. 



7. L. brevirostris, Champ. ; Benth. Fl. Hongk. 192. Hongkong 



without locality, Shameen, Canton ; Sanning ; Lienchow 

 River ; Pakhoi. Fl. yellow, August-December. 



49.— SONCHUS. 

 Key to species. 



Auricles of leaves acute ... ... i. oleraceus 



Auricles rounded 2. arvensis.' 



