Ipomoea pampeana P.P.A. Ferreira & Miotto

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

3. Ipomoea pampeana P.P.A. Ferreira & Miotto , Kew Bull. 66 (2): 289. 2011. (Ferreira and Miotto 2011: 289)

Type.

BRAZIL. Rio Grande do Sul, Manoel Viana, P.P.A. Ferreira 279 (holotype ICN, isotypes K, P, SP).

Description.

Perennial twiner to 3 m, stems woody, grey-tomentose. Leaves petiolate, divided palmately to the base into five segments, 4-10 × 0.7-3 cm, narrowly elliptic to oblanceolate, acute or obtuse and mucronate, the basal lobes sometimes only lobed, noticeably larger, both surfaces grey-tomentose; petiole 2-5 cm long, grey-tomentose. Inflorescence of compound axillary cymes; peduncles 2-13 cm, tomentose; bracteoles 3-6 mm, lanceolate, caducous; secondary peduncles 1-2.5 cm; pedicels 7-10 mm, tomentose; sepals slightly unequal, outer 10-12 mm, ovate, acute, grey-tomentose, inner 11-13 mm, the margins glabrous; corolla 5-7 cm long, funnel-shaped, sericeous, pink with purple throat, limb 5-6 cm diam. Capsules 11-12 × 10 mm, subglobose, glabrous; seeds black, shortly tomentose, 7-8 mm long.

Illustration.

Ferreira and Miotto (2011: 291).

Distribution.

Grassy pampa. Endemic to the area around Manoel Viana in Rio Grande do Sul, Brazil.

BRAZIL. Rio Grande do Sul (Ferreira and Miotto 2011).

Note.

This species is probably close to Ipomoea padillae and the species represented by Heinonen et al. 117 discussed after I. padillae .