357. Ipomoea colombiana O'Donell, Lilloa 26: 365. 1953. ( O’Donell 1953a: 365)

Type.

COLOMBIA. Huila, Natagaima, H.H. Rusby & F.W.Pennell 268 (holotype NY).

Description.

Glabrous trailing perennial with woody tap root, resembling I. maurandioides, stems slender. Leaves petiolate, 1.3-5 × 0.5-2.5 cm, ovate, apex acute and mucronate, base hastate to sagittate with acute or obtuse auricles, the sinus ± triangular. Inflorescence of solitary or paired, pedunculate flowers from the leaf axils; peduncles 1.5-3.5 cm; bracteoles 1.5-2.5 mm, ovate, relatively persistent; pedicels 7-9 mm, becoming reflexed; sepals unequal, outer 7-10 × 2-3 mm, oblong-lanceolate, acute and mucronate, inner sepals 10-11 × 3 mm, acuminate, mucronate; corolla 2.5-3.5 cm long, pink, narrowly funnel-shaped. Capsules 8 mm, subglobose, glabrous; seeds 5-6 × 4-5 mm, white-tomentose.

Distribution.

Endemic to the dry Upper Magdalena valley where it grows around 500 m. C OLOMBIA. Huila: Mason 13807 (US).

Note.

Similar in facies to Ipomoea maurandioides but leaves sagittate to hastate and inner sepals gradually narrowed to a mucronate apex. There appear to be no recent collections and it is difficult to assess this species without more material.