Ipomoea malvaviscoides Meisn. in Martius et al.

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

52. Ipomoea malvaviscoides Meisn. in Martius et al. , Fl. Brasil. 7: 284. 1869. (Meisner 1869: 284)

Type.

BRAZIL. Minas Gerais, Caldas, A.F. Regnell Ser. 3, 202 (holotype BR00005837670, isotypes S, US,?P03524169).

Description.

Twining herb to 1 m, stems tomentellous and somewhat glabrescent. Leaves petiolate, 3-6.5 × 2.5-5.5 cm, entire and ovate or 3-lobed to half way with the sides almost parallel, base weakly cordate or truncate with rounded auricles, apex rounded on central lobe, acute on laterals, strongly mucronate, adaxially thinly tomentose, greenish, abaxially densely white-tomentose with long appressed hairs; petioles 2.5-5 cm, densely pubescent. Inflorescence of moderately dense, few-flowered, axillary cymes, peduncles 4-9 cm, tomentellous; bracteoles 8-12 mm, linear to linear-lanceolate, tomentellous, somewhat persistent; pedicels 2-14 mm, tomentellous; sepals subequal, 9-13 mm, broadly lanceolate, acuminate, densely softly pilose, inner with pale, glabrous margins; corolla c. 4.5 cm long, funnel-shaped, pink, pubescent; limb c. 3 cm diam. Capsules and seeds not seen.

Distribution.

Apparently endemic to Minas Gerais State in Brazil.

BRAZIL. Minas Gerais: only known from the type collection.

Notes.

Resembling Ipomoea verbasciformis in the short pedicels and indumentum, but twining in habit, the leaves 3-lobed and distinctly petiolate and the inflorescence clearly axillary, not terminal. The parallel-sided leaves are also distinctive.

The Paris specimen cited above is ambiguously labelled but is probably an isotype.