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Jacquemontia paniculata (Burm.f. ) Hallier.f.
by Rafidah Abdul Rahman & Syahida Emiza Suhaimi
Newsletter
Jacquemontia paniculata (Burm.f. ) Hallier.f.
by Rafidah Abdul Rahman & Syahida Emiza Suhaimi

A widespread species of Convolvulaceae, Jacquemontia paniculata, occurs in Africa, India, Sri Lanka, Myanmar, China, Thailand, Laos, Cambodia, Vietnam, Malaysia, Indonesia, Philippines, New Guinea, Australia, New Caledonia and the Pacific Islands. However, in Peninsular Malaysia, the species recorded only in limestone in Langkawi and Perlis both in the northern part of Peninsular, where it has been collected three or four times. It grews on waysides, in thickets, dry grassy places and in disturbed forest to 600 m altitude. The species is probably more common in Peninsular Malaysia but has been over-looked.

Jacquemontia paniculata is a slender twining herb, with not exceeding a stem diameter of 2 cm. It has ovate leaves, sparsely clothed in hairs on both surfaces. The leaf base is shallowly cordate or rounded and the apex is acuminate or rarely mucronulate. The inflorescences are of the umbelliform-cymose type, and are sometimes densely flowered with tiny bracts. It flowers have unequal sepals that are pilose to glabrous outside and pilose inside. The outer 3 are ovate to elliptic-ovate and taper toward base while the inner 2 are much smaller. The funnel-shaped corolla is lilac, pale purple-pink and sometimes whitish inside. The limbs are shallowly 5-lobed. The lobes are glabrous or sparsely pubescent apically. The filaments are nearly unequal and are velvety at the base. It has a glabrous ovary, the style is c. 8 mm long and has an oblong stigma. The fruits of Jacquemontia paniculata are globose capsule c. 4 mm diameter and are 8-valved. There are up to 4 seeds per fruit and each seed is quadrant-shaped.

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