Nomenclature
Accepted name/Authority/Place of publication:
Argyreia barnesii var. urdanetensis (Elmer) Ooststr., Blumea 6 (1950) 344.-
Synonyms:
Riveaurdanetensis Elmer,Leafl. Philip. Bot. 7 (1915) 2605.
Description
Habit:
Stems twining, terete, young parts densely pubescent to tomentose, adult parts glabrescent.
Leaves:
Leaves ovate-oblong, ovate or broadly ovate, 6-18 by 3½-13 cm, rounded or cordate at the base, shortly to long-acuminate or caudate and mucronulate at the apex, more or less densely and softly pilose to tomentose on both sides, sometimes nearly glabrous above; nerves 7-9(-12) on either side of the midrib; petiole 2-5 cm, densely pubescent.
Inflorescences:
Peduncles axillary, 2- 14 cm long, one to many-flowered, pubescent like the stem. Pedicels much shorter than or nearly as long as the sepals, elongated in fruit. Bracts narrower, linear, with a long and linear to filiform acumen, lower ones ca 1-2 cm long, pubescent on both sides.
Flowers:
Sepals nearly equal in length, 5 mm long; two outer ones ovate to broadly elliptic, obtuse or mucronulate, pubescent to tomentose outside; sepal 3 broadly elliptic to orbicular, obtuse or truncate, with one glabrous margin; two inner sepals orbicular, emarginate, with two glabrous margins. Corolla 5-parted, lavender; lobes linear, ca 20 by 3-4 mm, glabrous in their basal portion, at the apex with 2 triangular glabrous lobules; tube ca 9 mm long, glabrous. Filaments with a tooth above the base, glabrous. Ovary glabrous, 2-celled.
Fruits:
Fruit ellipsoid, up to 1½(-2) cm long, purple, at the base enclosed by the slightly enlarged sepals.
Seeds:
seed 1, ellipsoid, 1 cm long.
References:
Ooststroom,S.J. van & R.D. Hoogland. 1953. Convolvulaceae In Flora Malesiana 4:388–512.
Biogeography, Ecology and Natural History
Distribution:
Philippines (Mindanao).
Ecology:
In forests, 600 m.
References:
Ooststroom,S.J. van & R.D. Hoogland. 1953. Convolvulaceae In Flora Malesiana 4:388–512.
Other information
Common names and uses:
Cawilan, kaulilan, Man .
Authorship for webpage
Editor:
Esmond Er
Contributors:
Classification:
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