79 



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-laiiceolate 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, li-4icm. broad; 

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

 connecting above ; veinlets prominently reticulated beneath when dried ; 

 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 

 tiian 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 scanty, acid, or acid 

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

 few to a cell of pulp, obovoid or obovoid-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 AurantiiLin ? var. Tachihana Makino in Jouru. Soc. Hort. Jap. 

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



Citrus nohilis var. Tac/dbana Makino in Sched. Herb. Sc. Coll. Imp. 

 Univ. Tokyo. 



Citrus nohilis var. spontanea T. Ito in T. Ito et Matsura. Tent Fl. 

 Lutch. I. 1899, p. 94. 



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



