168 



petiole wingless, terete, flatly canaliculated with very narrowly marginate 

 edges in front, 4-9 mm. long. Flowers axillary or sometimes terminal, 

 solitary or geminate, pedicellate, about 18 mm. across, odoriferous ; pedicel 

 shorter than the flower, 3-10 mm. long, furnished with laxly placed caducous 

 subulate ciliated scale-bracts. Calyx patent, 5-cleft, about 5 mm. across in 

 flower, persistent ; lobes broadly ovato-orbicular, slightly produced and obtuse 

 at apex, entire, glabrous but minutely ciliated margined, thickish, somewhat 

 concave within. Petals 5, white, erect- patent, spathulate-oblong, obtuse, 

 entire, thicker towards the centre, sparsely punctate externally, about 12 mm. 

 long, 4i mm. broad. Stamens shorter than corolla, erect, many-antheri- 

 ferous; filaments united into several bundles ; anther oblong- elliptical, obtuse 

 at the apex, bifid at the base. Disk depressed. Ovary depressed-globose, 

 glabrous, punctate, sulcate longitudinally, 2-2| mm. across, 6-8-celled with 

 thick carpels ; ovules minute, 2 -serial ; style erect, cylindrical, glabrous, lower 

 than stamens; stigma ovoid-globose. Fruit depressed-globose or depressed- 

 obovid-globose, often more or less concave at top, yellow, 2-3 cm. across, 

 smooth, minutely punctate with numerous subepidermal oil-glands, 6-8-celled; 

 cell packed with a soft tissue of fusiform vesicles ; juice scant}', acid, or acid 

 and slightly bitter ; rind not thick, easily separable from pulp. Seeds a 

 few to a cell of pulp, obovoid or obo void-ellipsoidal, smooth, the rhaphe 

 more or less distinct ; testa firm ; tegmen membranaceous, slightly thickish 

 and coloured internally at the chalaza ; embryos 1-3 to a seed, cotyledons 

 greenish. 



Citrus Aurantium ? var. Tachibana Makino in Journ. Soc. Hort. Jap. 

 1896, no. 75, p. 3, cum. tab. 



Citrus nobilis var. Tachibana Makino in Sched. Herb. Sc. Coll. Imp. 

 Univ. Tokyo. 



Citrus nobilis var. spontanea T. Ito in T. Ito et Matsum. Tent Fl. 

 Lutch. I. 1899, p. 94. 



Citrus sp. Makino in Bot. Mag., Tokyo, III. 1889, p. 144. 



Nom. Jap. Tachibana. 



Hob. Prov. Tosa: Karatani (T. Makino ! April 15, 1888, Dec. 1891, 

 Oct. 1892, June 1893); Prov. Tsushima: Tsutsu (K. Nagano ! herb. Sc. 

 Coll. Imp. Univ. Tokyo, March 1, 1895) ; Prov. Musashi : Tokyo, cult. 

 (T. Makino ! Dec. 1901). 



This is evidently growing wild, extending from Isl. Shikoku and Kiushiu 

 to Loochoo Archiperago. It is proved to be the original species of many 

 cultivated ones of C. nobilis Lour. 



