Ipomoea suburceolata O'Donell

Wood, John R. I., Munoz-Rodriguez, Pablo, Williams, Bethany R. M. & Scotland, Robert W., 2020, A foundation monograph of Ipomoea (Convolvulaceae) in the New World, PhytoKeys 143, pp. 1-823 : 1

150. Ipomoea suburceolata O'Donell , Lilloa 26: 394. 1953. ( O’Donell 1953a: 394)

Type.

BOLIVIA. “Caupolican”, fide note on sheet at Kew, R. Pearce 779 (holotype K).

Description.

Liana, glabrous in all parts, stems pale brown, woody. Leaves 4-9 × 4-8 cm, ovate, acute, base cordate to subtruncate, glabrous, abaxially paler, gland-dotted with pale whitish glands. Inflorescence of small cymes, often aggregated into a terminal panicle-like inflorescence; bracts resembling small leaves; peduncles 1.3-2 cm; secondary peduncles 10-15 mm; bracteoles 2-3 mm, oblong-ovate, obtuse, deciduous; pedicels 5-10 mm; sepals reddish, slightly unequal, outer 6-7 mm, ovate, obtuse, inner 8-9 mm, narrowly obovate with scarious margin; corolla 3.5-4 cm long, tubular but somewhat inflated in the middle to 10-12 mm in width, fuchsia-red, limb 5-lobed, 4-5 mm diam., dark red; stamens shortly exserted. Capsules 10-12 × 5 mm, ovoid, style persistent; seeds oblong in outline, c. 5 × 2 mm, long-pilose.

Illustration.

Wood et al. (2015: 79).

Distribution.

Bolivian endemic restricted to dry forest between 750 and 1200 m in the inter-Andean valleys north of Apolo in the Madidi National Park.

BOLIVIA. La Paz: Prov. Tamayo, Río Machariapo, A. Gentry 71078 (MO); Hac. Ubitó, M. Kessler 4007 (LPB); Asariamas, L. Cayola 1746 (LPB); A. Fuentes 18492 (LPB, MO).

Note.

Very similar to Ipomoea schulziana in habit, leaves and tendency of inflorescence to become paniculate but distinguished by the suburceolate corollas of a distinct fuchsia colour, the limb reduced to five very short lobes.