Nomenclature
Accepted name/Authority/Place of publication:
ArgyreianudaOoststr., Blumea 5 (1945) 686.
Description
Habit:
Stems twining, leafless at flowering-time, terete or slightly angular, with some appressed hairs in youth, glabrescent, more or less warty (lenticellate).
Leaves:
Leaves ovate-oblong (or ovate), 11 - 15(- 17) by 5-6(-12) cm, base rounded, in young leaves broadly cuneate, apex shortly acuminate; glabrous, the nerves excepted; midrib, ca 4(- 6- 7) nerves on either side and subparallel minor nervation prominent beneath; petiole up to 6(- 10) cm long, shortly appressed-pilose, sulcate.
Inflorescences:
Inflorescences in the axils of fallen leaves on the main stem or on lateral branches; in the first case umbellately cymose, 4-8- or up to 20-fiowered, in the second case also umbellately cymose, and moreover contracted into a panicle. Peduncles 10-24 mm long, flattened towards the apex, appressed-pilose. Pedicels 4-7 mm or in the central flower up to 10 mm, at the base densely, towards the apex more sparsely pilose.
Flowers:
Sepals glabrous or sparsely pilose at the base outside; two outer ones ovate, rounded or slightly retuse at the apex, ca 6 mm long; sepal 3 slightly oblique, elliptic-orbicular, ca 6-6½ mm long, with one thinner margin; two inner sepals elliptic-orbicular, ca 6½ mm long, with two thinner margins. Corolla funnel-shaped, ca 3½ cm long, glabrous outside, white, pink or violet towards the limb; limb shallowly lobed, ca 4-4½ cm diam. Stamens and style included. Filaments pilose at the base. Ovary glabrous, 4-celled.
Fruits:
Fruit ovoid or ellipsoid, ca 12-14 mm long, violet or crimson.
References:
Ooststroom,S.J. van & R.D. Hoogland. 1953. Convolvulaceae In Flora Malesiana 4:388–512.
Biogeography, Ecology and Natural History
Distribution:
Sumatra.
Ecology:
In forests, high climbing;
flowers and fruits in the basal parts of the stem; 600-900 m.
References:
Ooststroom,S.J. van & R.D. Hoogland. 1953. Convolvulaceae In Flora Malesiana 4:388–512.
Other information
Common names and uses:
Akar katjan pariwo, Mt Talakmau.
Authorship for webpage
Editor:
Esmond Er
Contributors:
Classification:
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