167 



Hah Prov. Musashi : Tokyo, Bot. Gard. Koishikawa (Herb. ! Sc. 

 Coll. Imp. Univ. Tokyo, May 31, 1881 ; T. Malino ! June 1896, Dec. 

 1901). 



Common and widely cultivated in Japan, extending from Loochoo to 

 northern Japan. It is more hardy than any other one of Citrus in thi- 

 country. 



Citrus Aurantium Linn, subsp. nobilis (Lour.) Makino. 



Citrus nobilis Lour. Fl, Cochin, ed. Willd. p. 569 ; Apreng. Syst. 

 Veg. III. p. 334 ; Sieb. Synops. PI. Oeconom. Jap. p. 59 ; DC. Prodr. I. 

 p. 540; Walp. Bepert. II. p. 804; Ker Bot, Begist. tab. 211; Lowe 

 Man. FI. Madeira L p. 74 ; Brandis For. Fl. Ind. p. 51 ; Loud. Encycl. 

 PI. p. 654, fig. 10978 ; Bretschn. Early Europ. Bes. Fl. Chin. p. 142 ; Miq. 

 Prcl. Fl. Jap. pp. 15, 376 ; Franch. et Sav. Enum. PI. Jap. I. p. 74; F. v. 

 Muell. Bel. Extra-Trop. PI. ed. 1885, p. 93; Nichols, lllustr. Diet. Gard. 

 I. p. 335, fig. 464; Forbes et Hemsl. in Journ. Linn. Soc. XXIII. p. Ill; 

 Bonav. Cult. Orang. a. Lemon. Ind. a. Ceyl. p. 55; Ito et Matsum. 

 Tent. Fl. Lutch. I. p. 93; Engl, in Engl, et Prantl Die Nat. Pfianzen- 

 fam. III. 4, p. 196. 



Citrus deliciosa Tenore ; Edwards's Bot. Kegist. New Ser. IV. 1841, 

 Misc. Notic. p. 18, no. 44 ; Walp. 1. c. 



Citrus Aurantium var. Mandarinum Bisso. 



Citrus Aurantium Thunb. Fl. Jap. p. 293, ex parte, non Linn. 



Kitz, vulgo Tatz banna K^empf. Amcen. Exot. p. 801. 



Hob. Japan, common and cultivated. 



There are numerous varieties and forms under cultivation, and some of 

 them are sometimes passed into subsp. amara Engl. ( = (7. amara Link.= 

 C. Bigaradia Loisel. = C. vulgaris Bisso.). 



var. Tachibana (Makino). An var. spinosa (Miq.) ? 



Evergreen trees, attaining about 8 m. in height, densely ramose and 

 leaved, spinose ; branchlets green and trigonous-compressed, glabrous, more 

 or less flexuous ; spines axillary, patent or erect-patent, straight, shorter or 

 longer than the petiole. Leaves petioled, oblong-lanceolate or elliptical- 

 lanceolate, shortly attenuated towards the apex with an emarginate tip, 

 usually acute at base, depressed crenate, coriaceous, glabrous, green above, 

 paler beneath, minutely pellucid-punctate, 3-10 cm. long, l-J-4|cm. broad; 

 midrib prominent on both sides ; lateral veins 5 to 9, patulous, curved and 

 connecting above ; veinlets prominently reticulated beneath when dried ; 



