63. RUBIACE.-E. 97 



22. DamnacaHthus. 



Dicltotomous Key to the Formosan Dainnacanthus. 



( 1 ) Leaves ovate, smaller 2-3 cm. long, spiny D. indicus. 



Leaves lanceolate, linear nearly 10 cm. long, less spiny or not at all 



spiuv D- angustifolia. 



Damnacanthus angustifolius HAY ATA Fl. Mont Formos. p. 113. t. 



XV. 



HAB. Aiisan. 



Damnacanthus indicus G;ERTN. ; HAY ATA Fl. Mont. Formos. p. 114. 



HAB. Aiisan, Mt. Morrison, Hinokiyama. 



DISTREB. Eastern India, Central China, the Loo-choo islands and Japan . 



23. Psych of ri a LINN. 



Key to the Formosan Species. 



Erect, leaves elliptical or lanceolate, 14 cm. long, 4 cm. broad, acute at 

 the apex, attenuate at the base P- efliptieo. 



Repent on the ground or on a trunk, branches much divaricate, leaves much 

 smaller, obovate or oblong, 4 cm. long li cm. broad. P. serpens. 



Fsychotria elliptica KER. ; MATSUM. et HAY ATA Enum. PI. Formos. 

 p. 194. 



H\B. Pachina, Hokkokei, Giran, Tonsonpi, Taito, Seutou, Kelung, 

 Kusshaku. 



PISTIU:-.. Kwangtuug, Hongkong, Hainan. 



Psychotria serpens LINN. ; MATSUM. et HAYATA Euum. PI. Formos. 

 p. 195. 



HAB. Mamyania, Hokkokei, Kotosho, Pachina, Taiton, Kelung. 

 DISTRIB. Central and Southern China and Corea. 



24. Geophila DON. 



Geophila reniformis DON. ; MATSUM. et HAYATA Euum. PI. Formos. 

 p. 195. 



