63. RUBIACEJE. 79 



1. Cephalanthus LINN. 



Cephalanthus occidentalis LINN. ; MATSUM. et HAYATA Enum. PI. 

 Formos. p. 182. 



HAB. Garambi, Rato, Koteisho. 



DISTRIB. Western India, Malaya, Northern America. 



2. Adi tut SALTSB. 



Adina racemosa MIQ. ; MATSUM. et HAYATA Enum. PI. Format p. 

 183. 



HAB. Garambi. 



DISTIJIB. Southern Japan and Western China. 



3. Nauclea LINN. 

 Dichotomous Key to the Formosan Species. 



( 1 ) Leaves thinly hairy on both surfaces. (2). 

 Leaves glabrous on both surfaces. (3). 



( 2 ) Leaves thin, membranaceous N. florida. 



Leaves coriaceous or chartaceous N. formosana. 



( 3 ) Leaves ovate acuminate at the apex, flower-heads pedunculate, peduncles 



slender. (4). 

 Leaves obovate broader, rounded or shortly acute, flower-heads large 



nearly sessile , N. truncate. 



( 4 ) Leaves not polished above, ovate, primary veins inserted in a much 



acuter angle N. taiwaniana. 



Leaves polished above, primary veins fewer, inserted nearly trans- 



versally 2i. transversa. 



Nauclea formosana MATSUM. in MATSUM. et HAYATA Enum. PI. 

 Forraos. p. 183. 



HYB. Taikatei, Bioritsu. 



Nauclea taiwaniana HAYATA Mater. FI. Formos. p. 139. Branches 

 glabrous, strong, fusco-rubescent, with a few lenticels. Leaves opposite, 



