28 



HUTACE-'E. 



longo '2 mm. crasso basi plus minus dilatato cum ovariis articulate, stigmate 

 pulviniformi 4 mm. lato 2 mm. longo. Fructus depresso-globosus 5^ cm. longus 

 6-7 cm. latus ; medulla soli da ; carnibus acidis. Semiua cuneato-ovata plus 

 minus complanata 1 cm. longa. 



HAB. Shintikujmlt. 



NOM. JAP. Uyonkan ^$. 



NOTE: Colour of the skin is like that <f No. 131 or No. 15G in KLIN. 

 et VAL. Code des Coul. 





Fig. 18 ; Various species of Citrus. 1, a fruit of Citrus Daidai HAYATA 2, calyx and 

 i 'vary in section of the same species ; o, accrescent calyx of the sumo ; 4, petal of the saint- ; 

 r ), a petal of Citrus sinensis form. SeJchin ; 0, a petal of Citrus Tallinn HAYATA. 



Differs from C. Aurantium by the fruits witli a solid core. It may be hy- 

 brid between C. Aurantium and C. sineiisis. Flowers in the middle of Feb- 

 ruary. The present species is very near witli a Japanese one, called Daidai $ or 

 Kwaiseikan 'l^c^/fH"; find we think the Formosan one is identical with the latter. 

 The petals of the present Citrus are much narrower than those of any of the 

 Formosan oranges. It is nearly similar to the following species, Natsudaidai ; 

 the fruits come quite close to those of C. sinensis forma Sekkan. 



