24 



RUTACEJS. 



mm. in diametro 1 mm. crasso. Fructus depresso-globosus basi interdum conico- 

 gibbosus 7 cm. longus 8 cm. latus, pericarpio valde rugoso valde laxo hand stricto; 

 medulla cava. 



TT cr, . ^fS^H^^^-^f-^ff^^ \ ". 



HAB. Snmpo cult. 

 XOM. JAP. Ponhan 



F ig. IB; Citrus Mi* Lour, var. pooneMis HAVANA ; 

 a form withont a navcl at the base ' (top in the figure) - 



The variety resembles 

 Citrus Tanltan in flowers 

 and leaves; but the flowers 

 are smaller, petals narrow- 

 er, leaves obtuser in the 

 present variety, than those 

 in the latter. There is 

 no distinct articulation 

 between the ovary and 

 style in the former, while 

 such is very distinct in the latter. Leaves of the variety are quite smooth 

 on the upper surface, but those of C. Tankan have very minute elevated 

 dispersed dots. The flowers of the var. poonensis resemble those of another 

 variety PonJci ; but the calyx-lobes of the former are obtuser than those of the 

 latter. There are some points which may suggest the present orange to be a 

 hybrid between C. vobilis and C. arandis. Thev are the anthers and ovarv 



*j *s t/ / 



which resemble much those of C. grandis. But, this is, I think, a mere acci- 

 dental feature, all other characters of the present orange are essentially of those 

 of C. nobilis. In one form, the colour of the skin is like that of Xo. 151- 

 Xo. 126, and that of the pulp is No. 131 ; while in another, the colour of 

 the skin and pulp is like that of Xo. 126 in KLIN, et VAL. Code des Coul. 

 This tree, when quite old, attains a height of 5 in. 14 cm., the branches spread- 

 ing over 4^ m. in width. 



Citrus nobilis Lorn. var. Genshokan HAYATA n. v. C. nobilis var. 

 Miltan SIEB.? in Synopsis Plantarum Oeconomicarum Universi Regni Japonici 

 p. 59, (nomen imduin). Frutex 3 m. 82 cm. altus, 3 m. 85 cm. latus. ramis 

 asccndentibus gracilibus. Folia lanceolata vel ovato-lanceolata vel oblonga 



