RUTACE^. 



29 



Citrus Natsudaidai Hayata sp. -nov. (Fig. 19) Cltrus AuranUum Lixn. 

 .suL.sp. sinensis Engl. ; Hayata Gcii. Ind. i). 11. Frutex 2^ m. altus 4 m. latus ; 

 rami validi divaricatissimi. Fructus deprcsso-globosus 8 cm. longus 10 cm. 

 latus ; pcricariiio plus minus laxo ; mcdulla partim solida partim cava. 



Fig. 19; 1, an :inthcr of Cilnis Natsudaiddi ; 2, Ciilyx and ovary of llic 

 same species ; .", a fruit of thc saiiic ; 4, an antlicr of Citrus grandis. 



