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Lasianthus verticillatus
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Family:
RUBIACEAE
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Citation: Lasianthus verticillatus (Lour.) Merr., Trans. Amer. Philos. Soc. n.s. 24: 372. 1935.
Dasus verticillatus Lour., Fl. Cochinch. 141. 1790.
Lasianthus truncatus Bedd., Ic. t. 9. 1868-1874; Hook. f., Fl. Brit. India 3: 189. 1880; Gamble, Fl. Pres. Madras 647(456). 1921; Deb & Gangop., Journ. Econ. Tax. Bot. 15: 302. 1991.
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Malayalam Name(s):
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Tamil name(s):
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English name(s):
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Description:
Shrubs about 2 m high; branchlets slender, pubescent. Leaves opposite, 7-21 x 1.5-3.5 cm, narrowly elliptic or lanceolate, acuminate at apex, cuneate at base, thinly coriaceous, glabrous above, pubescent on midrib, nerves and nervules beneath, blackish green or chocolate when dry; midrib channelled above; lateral nerves 7-9 pairs, sub-opposite, subparallel, arcuate, slender, slightly raised above; nervules parallel; petioles 4-10 mm long, slender, pubescent; stipules 1-2 x 2-3 mm, triangular or ovate-acuminate at apex, pubescent above. Inflorescence sessile, 1-6 flowered; bracteoles absent. Flowers sessile, 6-7 mm long. Hypanthium ± 1 mm long, obovoid, glabrous or puberulous; calyx tube 1 x 1.5-2 mm, cupular, glabrous above; lobes 4, persistent, ovate, acute, puberulous at margin. Corolla tube 4-4.5 mm long, pubescent at upper part on both sides; lobes 4, ± 1.5 mm long, elliptic-lanceolate, pubescent. Stamens 4, included; filaments ± 0.5 mm long, adnate below throat; anthers ± 0.5 mm long, narrow-oblong. Ovary ± 0.5 mm, obovoid, 4-loculed; style ± 2.5 mm long, thin, wider, pubescent above; lobes 4, less than 0.5 mm long, narrow-oblong; disk ± 1 mm across, flat, smooth. Fruit sessile, ± 5 x 4 mm, crowned with calyx lobes; pericarp thin, glabrous; mesocarp thin; pyrenes 4, dorsally convex, 1-striped, wrinkled, ventrally angled, acute at apex, acuminate at base, wall thick, with raphides; seeds 3-4 mm long, flat or semiterete, short stalked at base.
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Habit:
Shrub
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Flowering & Fruiting:
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District(s):
Thiruvananthapuram
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Medicinal:
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Habitat:
Evergreen forests
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Distribution:
Peninsular India
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Aquatic:
No
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Epiphyte(s):
No
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Saprophyte:
No
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Stem parasite:
No
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Root parasite:
No
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Flower colour(s):
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Weed:
No
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Monocot/Dicot:
Dicotyledonous Plants
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Exotic:
No
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Garden:
No
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Edible:
No
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Vegetable:
No
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Endemic to:
Western Ghats
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IUCN status:
Vulnerable (VU)
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Altitude:
-1350
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Localities:
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