Coriandrum L., Sp. Pl. 256. 1753; Gen. Pl. 5: 318. 1754; Boiss., Fl. Or. 2: 920. 1872; Clarke in Hook. f., Fl. Brit. Ind. 2: 717. 1879; Hiroe, Umbel. Asia. 1: 127. 1958; Tutin in Tutin et al., Fl. Eur. 2: 328. 1968; Menglan & Watson, Fl. China @ eFloras.org 14: 30; Fl. Pak. @ eFloras.org

Annual herbs, strongly aromatic, glabrous. Stem erect, branched above. Leaves petiolate; 1-3 pinnately dissected, membranous, ultimate segments very variable in shape. Umbels compound, lax, terminal or opposite to leaves, involucre of 1-few minute bracts or lacking; rays several, spreading, unequal; involucel of a few to several linear bracteoles. Calyx teeth short, prominent, acute, often unequal. Petals white, rose- pink or light purple, obovate, apex deeply notched, outer petals enlarged (radiant). Stylopodium conic. Styles slender, erect. Fruit ovoid, suborbicular or orbicular, mericarps not readily separating at maturity; pericarp hard; primary and secondary ribs filiform, evident; vittae absent or solitary, obscure in mature fruits; inner seed face concave. Carpophore deeply bifid at apex.

2 species

Coriandrum sativum L., Sp. Pl. 256. 1753; Boiss., Fl. Or. 2: 920. 1872; Clarke in Hook. f., Fl. Brit. Ind. 2: 717. 1879; Hiroe, Umbel. Asia. 1: 127. 1958; Tutin in Tutin et al., Fl. Eur. 2: 328. 1968; Buw., Blumea 2: 171. 1936; Matthew, Fl. Tamil. Carnat. 2: t. 316. 1982; Kaur & Sharma, Fl. Sirmaur 321. 2004; Fl. China @eFloras.org 14: 30; Fl. Pak. @ eFloras.org; Selinum coriandrum Krause in Sturm, Fl. Deutsch. ed. 2, 12: 163. 1904.

Annual herbs, strongly aromatic, glabrous. Plants to 60 cm high, branched. Lower leaves pinnate to 2-pinnatisect; petiole to 13 cm, shortly sheathing at base; blade ovate to flabelliform, 1-2 cm x 1-1.5 cm, variously toothed or incised; ultimate segments broad. Middle and upper cauline leaves ternate to 2-3-pinnatisect, reducing up the stem; ultimate segments linear to filiform, 2-15 mm x 0.5-1.5 mm, obtuse, entire. Inflorescence a compound umbel; peduncle 4-10 cm long; rays 2-8, unequal, 1-2.5 cm long; involucre absent. Umbellules 3-16-flowered; pedicels 2-5 mm, involucel of 3-5 bracteoles, linear, 2.5-3 mm long, entire. Flowers white, rose-pink or light purple. Calyx tube (Hypanthium) adnate to ovary; teeth 5, small, +/-1 mm long, prominent, ovate-deltoid or ovate-lanceolate, unequal (2 anterior larger than the posterior 3). Central flowers with 5 small equal petals with inflexed tips; in marginal flowers 2 posterior petals smallest and bilobed; anterior is the largest (ca. 4-5 mm long) and deeply bilobed; 2 laterals medium-sized and also unequally bilobed. Stamens 5, free; filaments long; anthers small, dorsifixed. Ovary bilocular with one ovule per loculus; style slender, erect, stylopodium conic. Fruit subglobose, ca. 4 mm long; primary and secondary ribs filiform, evident; vittae in furrows obscure; commissure 2-vittate; inner seed face concave; carpophore deeply bifid at apex.

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