>^vt.. 19211 NOTULjE ad PLA^TAS japonic ET KOREM XXV. 145 



Insulae Sulphurae : in insula Naka-kwoto (T. Nakai). 



Mucuna gigantea is said to distribute over wide regions from 

 India to Polynesia. The type is growing in East-India. Wili.denow 

 (Species Plantarum III. p. 1041) has for the first time described it 

 under Dolichos, and said that the flowers are whitish green. 

 Roxburgh (Flora Indica III. p. 287) made a new genus Carpopogoti 

 for that species, and said that the flowers are large and beautiful 

 sulphur coloured. Aug. Pyr. de Candolle (Prodromus Systematis 

 naturalis regni vegetabilis II. p. 405) has reduced Carpopogon to 

 Mucuna, and described the flowers of M. gigantea to be pale 

 greenish. J. G. Baker (Flora of British India 11. p. 186) has 

 concurred to Roxburgh. I shall follow Mr. Roxburgh, because he 

 had himself devoted his life to investigate the Indian Flora, and he 

 must have observed himself on all the traits of Indian plants which 

 he described so thoroughly. I think, therefore, the same species 

 indigenous in extra-India is either the distinct variety of Mucuna 

 gigantea or distinct species. For example, the Javaniau plant is 

 much larger in every respect than the Indian one, and has yellowish 

 green flowers. The ancestor of the Bonin one might have come 

 floating on sea-current from the adjacent lands, after the submarine 

 volcanic islands Bonins upheaved from the depth of Pacific ocean, but 

 at present, the plant is too distinct from both Indian and Javanian 

 ones to let it reduce into them. 



577) Tribulus terrestris, Linne Sp. PI. p. 387 (1753). 

 Nom~ Jap. Hamabishi. 



Hab. 

 Quelpaert : in arenosis littoris Tyontyong (Taquet n. 75). in 

 arenosis littoris (Taquet n. 703), in herbidis littoris (Faurie n. 



1699). 



Corea : in arenosis littoris Hoson (T. Nakai). 



578) Euonymus kawachiana, Nakai sp. nov. 



Sane afiinis E. radicante sed caule non repente radices non 

 agente, foHis teneribus differt. Etiam E. Japonicae accedit sed ramis 

 sracilioribus foliis tenerioribus differt. 



Caulis ascendens apice horizontali deflexus viridis gracilis ramosus 

 1 m. altus. Gemmae ovatae virides multisquamatae. Folia biennia 

 viridissima, petiolis 1-2 mm. longis, laminis obovatis v. late oblanceolatis 

 basi cuneato-attenuatis margine minute serrulatis apice acuminatis 

 supra lusidusculis infra viridibus opacis 15-57 mm. longis 6-13 mm. 

 latis glaberrimis costis utrinque elevatis. Flores et fructus non vidi. 



