nOSCOREACE-E. 



45 



Fig. 23, Dioscorea raishcensis Hayata ; 1, a brancli ; 2, a mole flower ; 3, an 

 onter sepal ; 4, an inner sepal, seen from •without ; 5, the same, seen from within ; 6, a 

 clnster of stamens. 



