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Pakistan | Family List | Hydrocharitaceae | Halophila

Halophila ovalis (R. Br.) Hook. f., Fl. Tasm. 2:45. 1858. Benth., Fl. Austral. 7:182. 1878; Hartog in Steenis, l.c. 408. fig. 16. 1957; Subramanyam, Aquat. Angiosp. 62. 1962.


  • Caulinia ovalis R. Br.
  • Halophila ovata non Gaud.: Aschers.

    Dioecious, slender stemmed herb with 1-5 cm long internodes. Roots simple, solitary at the nodes. Nodal scales suborbicular or obovate, 3-8 mm long, faintly keeled, ± auricled at the base, apically emarginate. Leaves paired, oblanceolate-elliptic to ovate, 1-4 cm long, 0.5-2 cm broad, glabrous, rounded or acute at the base, margins entire, apex obtuse; petiole 1-4.5 (-6) cm long. Spathes with 2 free, overlapping, lanceolate, acuminate bracts. Flowers solitary or paired. Male flowers: sepals elliptic, c. 4 mm long and c. 2 mm wide, obtuse or faintly apiculate. Female flowers: ovary c. 1-1.5 mm long, beak 3-3.5 mm long; styles 3, filiform 1.3-2 cm long. Fruit ovoid-globose, 3-4 mm long with c. 3 mm long rostrum. Seeds numerous, ovoid with finely reticulate testa.

    Fl. Per.: September-November.

    Type: Described from New Holland.

    Distribution: Coasts of Madagascar, E. Africa, Saudi Arabia, Pakistan, India eastwards to Japan via Malaysia and southwards to Australia.


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