Argyreia kerrii
Nomenclature
Accepted name/Authority/Place of publication:
Argyreia kerrii Craib, Bull. Misc. Inform. Kew 1911: 422. 1911.
Synonyms:
Lettsomia kerrii (Craib) Kerr, Fl. Siam. 3(2): 33. 1954. TYPE. Thailand. Chiang Mai: Doi Suthep, Kerr 761, (isotypes BM, P). image
Description
Habit:
Deciduous woody twiner or trailer from woody rootstock to 2 cm diam.; stems to 1 m and longer, c. 15 mm diam. at base; indumentum of 2 types: long, yellow tubercle-based hairs and shorter, crimped, whitish hairs.
Leaves:
Leaves ovate or broadly ovate, 4–19 by 3.5–14 cm, base cordate, apex obtuse or shortly acuminate, apiculate, upper side sparsely pilose, underside softly villose; lateral veins c. 12 per side; petiole c. 5 cm.
Inflorescences:
Inflorescence axillary, several-flowered; peduncle to 2 cm; bracts ovate-lanceolate, 2–3.8 by 0.7 cm, often undulate-crisped, attenuate, outside brownish, tawny, or whitish tomentose; pedicels 3–15 mm.
Flowers:
Flower sepals subequal, ovate-oblong to oblong-oblanceolate, 10–12 by 6–7 mm, obtuse or rounded, outer 3 appressed pilose medially or glabrous, inner 2 glabrous; corolla tubular-funnelform, c. 5 cm long, dark purple or maroon, limb 2.5–3.0 cm diam., subentire, glabrous outside; stamens included, filaments 11–13 mm long, bases dilated, shortly pilose, anthers 4–5 mm; pistil included, disc annular, 5-lobed, ovary glabrous, style c. 45 mm.
Fruits:
Berry globose, c. 10 mm diam., red, enclosed in accrescent, reddish calyx.
Seeds:
Seeds c. 6 mm, brown, glabrous.
References:
Staples, G. & P. Traiperm. 2010. Argyreia in Convolvulaceae. Fl. Thailand 10(3): 337–371.
Biogeography, Ecology and Natural History
Distribution Map:
Distribution:
Thailand. Endemic.
Ecology:
Sunny places in dry
deciduous forest, deciduous dipterocarp-oak forest, degraded/disturbed hardwood
and deciduous forest, on sandy and clayey soils, over granite bedrock;
altitude: 300–1100
Phenology:
Flowering: August–October; fruiting: October–December.
References:
Staples, G. & P. Traiperm. 2010. Argyreia in Convolvulaceae. Fl. Thailand 10(3): 337–371.
Other information
Common names and uses:
Khruea phu muang (Thai).
Authorship for webpage
Editor:
George Staples, Esmond Er
Contributors:
