Cornacese in Japan. 



By 



T. Nakai. 



Feb. 1909 in Tokyo. 



Only four genera and ten species of this family were hitherto 

 known to us to be indigenous to Japan. It is true, that the 

 number of genera is not large, yet they contain many species 

 morphologically interesting. I presume that no other phane- 

 rogamous plants have, like the so-called genus of Cornus, such 

 strikingly different types of species in the same genus. New 

 classifications have often been attempted by many eminent 

 botanists, but mcthinks, the light of the modern systematic 

 botany has hardly been applied here. This unfortunate over-sight 

 obliges me to disagree with them in many points and express 

 my humble opinions in the following lines. 



CONSPEGTDS GENERUM* 



A. Flores epiphylli dioici, drupac atne v. Helwingia Willd. 



B. Flores noil epiphylli. 



a) Flores unisexualcs. Frutex, foliis persistentibus lucidis. Fruetus 



coccinei v. albi vi. Aucuba Tin xn. 



Ij) Flores hermaphroditi. 



'/) Petala loriforraia. Arbor v. frutex, foliis alternis 



vii. Marlea Roxu, 



j8) Plorea regulares, petalis oblongis v. ovatis. Arbor, frulcx v. 

 herba perennes. 



O [nflorescentia ebracteata. Caulis fruticosus v. arboreus. 

 Flores albi cymoso-paniculati. Fruetus cacrulei v. 

 albi i. Cornus I. 



* I have endeavoured to make tin inform with the international 



ml. j pa i ■! at the Vienna I 



