Ipomoea jalapoides Griseb.

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

195. Ipomoea jalapoides Griseb. , Cat. Pl. Cuba 202. 1866. (Grisebach 1866: 202)

Exogonium jalapoides (Griseb.) House , Bull. Torrey Bot. Club. 35 (3): 101. 1908. (House 1908a: 101).

Type.

CUBA. “Occ.”, Wright 3097 [1636] (holotype GOET000344, isotypes GH, HAC, K, NY, S, US, YU).

Description.

Perennial, probably twining herb; stems herbaceous, white-tomentose. Leaves petiolate, 2-4.3 × 0.7-1.8 cm, narrowly ovate, sometimes 3-lobed with long central lobe, apex acute to shortly acuminate and strongly mucronate, base cordate with rounded auricles, adaxially grey canescent, abaxially white-tomentose; petioles 7-14 mm, tomentose. Inflorescence of few-flowered, leafy axillary cymes; peduncles 1-2.8 cm, tomentose; bracteoles 4-5 mm, linear-lanceolate, tomentose; pedicels 6-9 mm, densely tomentose; sepals subequal, outer 8-10 × 5 mm, elliptic, obtuse, tomentose, inner, glabrous except for tomentose central area, the margins scarious; corolla 5-5.5 cm long, narrowly funnel-shaped, basal tube only slightly widened upwards c. 1 cm, dark red, limb broad, 2-3 cm diam., red, glabrous. Capsules ovoid, 10 × 7 mm, glabrous; seeds 5 × 3 mm, pilose with long marginal hairs.

Distribution.

Endemic to CUBA, apparently only known from the type collection.

Note.

The leaf base is cordate to truncate and the leaves are sometimes 3-lobed. The corolla is longer than in Ipomoea argentifolia and I. fuchsioides .