Botanical Survey of India | Flora of India

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Helixanthera intermedia (Wight) Danser in Bull. Jard. Bot. Buitenzorg, Ser. 3, 10: 317. 1929. Loranthus intermedius Wight in Calcutta J. Nat. Hist. 6: 361. 1846; Hook.f., Fl. Brit. India 5: 205. 1886.


Shrubs; branches covered with cinnamomeous brown conchiform hairs when young, glabrous when old. Leaves opposite or subopposite, broadly ovate or elliptic, narrowed at both ends, rounded-cordate or auricled at base, obtuse at apex, 5.5 - 15 x 3.5 - 6 cm, coriaceous, cinnamomeous brown conchiform hairy when young, glabrous when old; lateral nerves 6 or 7 pairs; petioles winged towards apex, 7 - 15 cm long. Inflorescences centripetal pseudoracemes; peduncles 1 or 2 in each axil, 12 - 30-flowered, sparsely cinnamomeous brown conchiform hairy, 4.5 - 10 cm long. Flowers horizontal, 4-merous, 12 - 15 mm long, pinkish red or purplish brown, glabrous; pedicels 2.5 - 3 mm long; bracts sigmoid, 1.5 - 2 x 1.5 - 1.8 mm. Calyculus cupular, truncate, with minute hairy margins. Petals 4, narrowly spathulate, 8 - 12 mm long. Stamens 4, erect; filaments 1.5 - 2 mm long; anthers 4-lobed, 1 - 1.2 mm long. Ovary subglobose, 2 - 2.5 mm long; stigma capitate. Fruits urceolate, black, smooth, sparsely cinnamomeous brown conchiform hairy, with distinct stylar scar, 2 - 2.5 x 1.5 - 1.8 mm.

Fl. & Fr. June - Nov.

Distrib. India: Evergreen forests, on a limited number of hosts, i. e. Cinnamomum spp., Helicteres isora, Machilus macrantha, etc. Karnataka, Kerala and Tamil Nadu.

Endemic.

Notes. Vessel pittings scalariform; fibres excessively thick-walled with narrow slit-like lumen or without lumen.

Pollen 3-lobed; P - 19 (22.1) 27 µm; E - 34 (41.3) 44 µm; P/E - 0.53 µm; ex. 0.2 µm; col. 1 µm.




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