18 



nUTACEA'. 



3 cm. longa 14 nim. lata apice obsusa basi liaud vcl lcviter contracta ^alde 

 reflexa. Stamina circ. 40, antheris linearibus G mm. longis 1| mm. latis apice 

 a])iculatis basi 2-lobatis. Discus annuliformis. Ovarium obovoideo-cylindricum 

 7mm. longum 6 mm. latum sursum liirsutum, stylo columnari 12 mni. Inug-o 



3 mm. crasso, stigmate pulviniformi 3 

 mm. alto 7-8 mm. in diametro sub- 

 peltato. Fructus pyriformis 12 cm. 

 longus 11 cm. latus circ. 10-locularis, 

 l)ericar])io crasso flavescenti ; carnibus 

 fere albicantibus. 



Hab. Shintiku, IShirin, leg. B. Ha- 



YATA. 



NoM. Jai*. Buutnn, ;^j3 . 

 Notp: : Flowers tovvards the cnd of 

 March. 



The present species is princi])ally 

 distinguishable from the fol](j\ving 

 one, Zahon, in the shape of the fruits, as can be seeu in the accompanyiiig 

 ligures. Leaves of the former are more densely arranged and tlieir surfaces 

 are less undulate ; but tliose of the latter are less dcnsely arranged and tlieir 

 surfaces are much more unibilate. Wings of the petioles in Zahon are smaller 

 than tliose of Buntan. But these differences just giveii can never be regarded 

 as constant ; there are vcry raany exceptions. 



Citrus Sabon Sied. Synopsis Plantarum Oeconomicarum Universi Regni 

 Japouici, in Verh. Batav. Gen. XH. (1830) p. 5!), (nomen nudum). Frutex 

 vel arborescens 7 m. altus latior quam longior, rami validissimi divaricati vel 

 jilus minus inclinati. Fructus depresso-gloljosus 18 cm. longus totiusque latus 

 apice plus minus conicus basi depressus, pericarpio flavescenti, carnibus purpura- 

 scentibus, 10-15-locularis. 



Citrus decumana LouPv. ; Hayata Geu. Ind. p. 11. 



Hab. Shinkiku, Shirin, ubique cult. 



NoM. Jap. Zahon, ^^••, Yu, ;fft. 



There are several forms of tliis Citrus. They are as follows. 



Citms grandis Osbeck form. Buntan. x J. 

 'I'hi.s specimen is laken from a young tree; 

 a specimen frona an older one has a much 

 thinner peel. 



