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Pavetta wightii
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Family:
RUBIACEAE
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Citation: Pavetta wightii Hook.f., Fl. Brit. India 3: 152. 1880; Gamble, Fl. Pres. Madras 634(447). 1921; Mohanan, Fl. Quilon Dist. 218. 1984; Rout & Deb, Bull. Bot. Surv. India 41: 167. 1999; Mohanan & Sivad., Fl. Agasthyamala 349. 2002; Mohanan & Shaju, Journ. Econ. Tax. Bot. 28: 80. 2004.
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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 c. 3 m tall, erect, branched; stem stout, terete, glabrous. Leaves opposite, 8-16 x 1.8-5.5 cm, elliptic-lanceolate or elliptic-oblong, acute at both ends, coriaceous, glabrous above, puberulous beneath with pubescent nerves; bacterial glands many on tertiary or more finer nerves, rarely on midrib or secondary nerves, normally circular, rarely elliptic, oblong, linear or stellate, more prominent on lower surface; domatia tuft type, present on secondary nerves axils; midrib canaliculate above; lateral nerves 11-13 pair, alternate or subopposite, more prominent beneath; petioles 0.7-2.0 cm, stout, glabrous; stipules persistent, interpetiolar, 6-8 x 5-6 mm, broadly triangular, cuspidate, coriaceous, scarious at margin, glabrous outside. Inflorescence terminal, subsessile, trichotomously branched corymbose cymes, 7-10 cm across, puberulous; peduncles 0.2-0.3 cm, puberulous; bracts ca 5 x 7 mm, broadly triangular, membranous, glabrous. Flowers 50-80; pedicels 2-6 mm, puberulous. Hypanthium ca 1.0 x 1.2 mm, obovoid, puberulous; calyx tube ca 1.0 x 1.5 mm, broader above, puberulous outside, glabrous within; teeth 1.5-1.8 x 0.7 mm, narrowly lanceolate, acute at apex, puberulous. Corolla tube 10-13 mm long, cylindrical, glabrous outside, pubescent within; lobes 6.0-6.5 x 1.8 mm, oblong, acute at apex. Filaments ca 0.8 mm, slender, glabrous; anthers 4.5-5.5 mm. Ovary ca 1 x 1 mm, disc ca 0.5 x 1.0 mm; style 25-30 mm, slender, glabrous below, puberulous above; stigma ca 1.5 mm, clavate, puberulose.
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Habit:
Shrub
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Flowering & Fruiting:
March-June
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District(s):
Kollam, Thiruvananthapuram, Wayanad
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Medicinal:
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Habitat:
Evergreen and shola forests
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Distribution:
Southern Western Ghats
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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):
White
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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:
Southern Western Ghats
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IUCN status:
Critically Endangered (CR)
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Altitude:
1000-1500
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Localities:
Agasthymala peak, Pongalapara
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