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Pakistan | Family List | Cucurbitaceae | Citrullus

1. Citrullus colocynthis (Linn.) Schrad. in Linnaea. 12:414. 1838. Clarke, l.c.; R.R. Stewart in Nasir & Ali, Ann. Cat. Vasc. Pl. W. Pak. 702. 1972; C. Jeffrey in Kew Bull. 34:791. 1980.

Vern.: Indryan, Tumba.

S. NAZIMUDDIN AND S. SHAHARYAR H. NAQVI

  • Colocynthis vulgaris Schrad.
  • Cucumis colocynthis Linn.

    Perennial trailing herbs with somewhat woody tuberous root. Stems shortly hairy when young becoming scabrid. Tendrils simple, rarely bifid, slender, glabrous. Leaf blade ± elongate-ovate in outline, 10-60 (-110) mm long, 8-55 (-66) mm broad, distinctly scabrid-hairy beneath, smooth except on the nerves above, palmately deeply 3-5-lobed, ultimate lobes pinnately lobulate with central lobe longest, long-ovate in outline; petiolate, petiole rather densely rough-hairy; probracts lanceolate-elliptic, 4-5 mm long and c. l. 5 mm broad, caducous. Male flowers on long pedicels; calyx campanulate, c. 9 (4-8) mm long, lobes c. 5 mm broad; corolla pale yellow, ovate-acute, c. 8 mm long and c. 5 mm broad; female flowers on longer pedicels than male, receptacle-tube short, lobes lanceolate, c. 5 mm long. Ovary hairy, subglobose or obovate. Fruit on long stalk, c. 5 cm in diameter, globose, smooth, longitudinally green striped, 5-7 cm in diameter, eipcarp thin, filled with a dry spongy very bitter pulp. Seeds numerous, ovate-oblong, yellowish brown, not margined, c. 6 mm long and c. 3 mm broad.

    Fl. Per.: Jan.-April.

    Type: From a plant cultivated at Uppsala, Sweden (LINN, Lecto).

    Distribution: Northern Tropical Africa, Atlantic Islands, North-West India, Pakistan and Australia.


     

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