Botanical Survey of India | Flora of India

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Citrus maxima (Burm.) Merr., Interpr. Herb. Amboin. 46. 1917; Scora & Nicolson in Taxon 35: 592. 1986. Aurantium maximum Burm. in Rumph. Herb. Amboin. Actuar. nd. Univ. unnumbered p. 16 (leaf 2, verso p. 16, sub 'Pomplemoes') 1755. Citrus aurantium L. var. grandis L., Sp. Pl. 783. 1753. C. grandis Osbeck, Dagb. Ostind. Resa 98. 1757. C. aurantium L. var. decumana L., Sp. Pl. ed. 2,2: 1101. 1763, nom. illeg. C. decumana L., Syst. Nat. ed. 12, 508. 1767 (as 'decumanus'), nom. illeg.; Hook. f., Fl. Brit. India 1: 516. 1875.


Small to medium-sized trees, 5 - 10 m high; young parts grey-pubescent; bark grey-brownish, lenticellate. Leaves unifoliolate; petioles broadly winged; wings oblong-spathulate or obcordate, 1/4 to 1/3 as long as lamina, 20 - 25 mm broad; leaflet blades ovate to elliptic, obtuse or acute at apex, crenate along margins, 6.5 - 10 x 3 - 7 cm, softly pubescent beneath and along margins when young, soon becoming glabrate. Inflorescences of an axillary, solitary flower or a cluster of few flowers, softly pubescent; pedicels up to 2.5 cm long, pubescent. Flowers bisexual, oblong in bud. Calyx cupular, ca 1 x 1.5 mm, irregularly lobed; lobes pubescent, greenish-white. Petals oblong-obovate, obtuse, concave, ca 25 x 13 mm, glandular, glabrous, cream. Stamens up to 30; filaments irregularly polyadelphous at base, free above, linar, subulate, white; anthers oblong, apiculate, ca 1 mm long. Disk annular, ca 6 mm broad, greenish-white. Ovary obovoid, deeply inserted in the disk,5 x 7 mm, smooth, greenish white, glabrous, 10 - 14-locular; locules with many ovules; style cylindric, thick, dilated above, longer than ovary, ca 1 cm long; stigma broadly capitate, glandular-sticky. Fruits large to very large, up to 20 cm across, oblate to pyriform; pericarp light greenish to yellowish, glandular, smooth; mesocarp very thick, spongy, white; segments firm, large; pulp-vesicles numerous, firm but easily separable, pale green to pinkish, acidic or sweet; seeds large, wrinkled.

Distrib. Probably a native of S. E. Asia and cultivated in India and various other subtropical countries.



KEY TO THE VARIETIES


1a. Young parts grey-pubescent; fruits 15 - 20 cm across 5.1. maxima
b. Young parts glabrous or nearly so; fruits 8 - 12 cm across 5.2. uvacarpa


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