186 FLORA OF JAMAICA Citrus 



outer layer full of vesicles of essential oil, and the white thick inner 

 substance. Seeds ellipsoidal, plump, light-coloured, smooth. 



The shrub is very sensitive to cold. The rind of the fruit is preserved. 



2. C. Limonum Bisso in Ann. Mus. Paris xx. 201 (1813); 

 leaflet ovate-elliptical or oblong-elliptical, tapering to the apex, 

 5-14 cm. 1., apex acute, margin serrulate ; petiole with or without 

 a linear margin or narrow oblanceolate wing, distinctly jointed 

 with the leaflet ; fruit oblong-ellipsoidal, sometimes somewhat 

 obovoid, 6-10 cm. 1., usually with a nipple-shaped apex, rind 

 thin, pale yellow, pulp abundant, very juicy, acid, pale yellow. — 

 Bisso Orang. t. 70, 84 ; Wright Mem. 201 ; Mac/, in Hook. Bot. 

 Misc. i. 279 k Jam. i. 126 ; Berg & Schmidt Off. Gew. iv. t. 31, f. ; 

 BentL d Trim. Med. PI. t. 54 ; Hume Citrus <. 11 &/. 30 ; P. Wils. 

 loc. cit. C. medica var. Limon L. Sp. PL 782 (1753). C. Limon 

 Lun. Hort. Jam. i. 451 (1814). C; medica acida Tuss. Fl. Ant. 

 Hi. t. 19 (1824). C. medica var. Limonum Griseb. loc. cit. ; Hook. 



f. torn. cit. 515. C. Limonia Osheck Beise Ostind. China 250 

 (1765) ^de Swingle torn. cit. 146. Limo arbor &c. Sloane Cat. 209 

 <k Hist. a. 178. Limon vulgaris Miller Gard. Diet. ed. 8 (1768). 

 C. fructu ovato acido ike. Browne Hist. Jam. 308. 



Lemon. 



Cultivated ; native of India and China. 



Shrub or tree, 10-20 ft. high ; branches armed with spines in the leaf- 

 axils. Flowers solitary, rarely 2 or 3 together, axillary; buds purplish. 

 Calyx about 3 mm. 1., shallow, with 4-5 spreading teeth, persistent. 

 Petals 5, oblong, strongly reflexed, white within, tinged with purplish- 

 pink outside, nearly 2 cm. 1. Stamens 20-30(-35), nearly as long as the 

 petals, usually united below into bundles of about 4. Ovary 7-10-celled. 

 Fruit smooth, sometimes wrinkled, pitted over the oil-glands ; colour light 

 yellow. Seeds oval, pointed at one (micropylar) end, quite smooth. 



3. C. aurantifolia Swingle in Journ. Wash. Acad. Sc. Hi. 463 

 (1913) ; leaflet ovate-elliptical or ovate-lanceolate, 6-9 cm. 1., 

 crenulate, apex usually obtuse ; petiole usually with a narrow 

 oblanceolate wing ; fruit subglobular or ellipsoidal, very fragrant, 

 3 • 5-6 • 5 cm. 1., often with a nipple-shaped apex, rind very thin, 

 smooth, pale yellow or greenish, pulp abundant, agreeably acid, 

 greenish. — C. lima Lun. loc. cit. ; Macf. in Hook. Bot. Misc. i. 300 

 A Jam. i. 127 ; P. Wils. loc. cit. C. medica L. Sp. PL 782 (1753) 

 (in part) ; Descourt. Fl. Ant. i. t. 7 ; Wright Mem. 201. C. limetta 

 Wight Ic. t. 958 (non Bisso). C. aurantium var. spinossima 

 Griseh. loc. cit. (1859). C. limonellus Hassk. Cat. Hort. Bogor. 

 217 (1844). C. medica var. acida Hook. f. loc. cit. & in Bot. 

 Mag. t. 6745. Limonellus or Limo tenuis Bumph. Amhoin. ii. 107, 

 t. 29. Malus arantia fructu limonis pusillo acidissimo Sloane 

 Cat. 211 & Hist. ii. 182. C. fructu sphserico-ovato . . . acido 

 Browne Hist. Jam. 308. Limonia aurantifolia Christmann in 

 Linn. Pflanzensystem i. 618 (1777). 



