Ipomoea hypargyreia 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

189. Ipomoea hypargyreia Griseb. , Cat. Pl. Cub. 204: 1866. (Grisebach 1866: 204)

Ipomoea hypargyreia var. baracoensis Urb. , Symb. Antill. 9: 245. 1924. (Urban 1924b: 245). Type. CUBA. Prov. Oriente [ Guantánamo], Baracoa, Loma de Cuaba near Pinales, E.L. Ekman 3589 (holotype S07-4474).

Ipomoea platyclada Urb. , Symb. Antill. 9: 245. 1924. (Urban 1924b: 245). Type. CUBA. Prov. Oriente [ Holguín-Guantánamo], Sierra de Nipe, Río Piloto, E.L. Ekman 3342 (holotype S07-4475, isotype NY).

Type.

CUBA. C. Wright 1/69 (holotype GOET000345, isotypes GH,?HAC).

Description.

Perennial herb; stems adpressed pilose, becoming glabrescent. Leaves petiolate, often large, 5-12 × 2-6 cm, ovate, acute or acuminate, mucronate, base cordate with rounded auricles, adaxially green, pubescent, abaxially silver-sericeous; petioles 1-1.8 cm, subsericeous. Inflorescence of leafy, few-flowered axillary cymes; peduncles 1-1.8 cm, grey-canescent; bracteoles leaf-like, petiolate, 20-25 mm, narrowly ovate, acuminate, grey-canescent, deciduous; pedicels 4-6 mm, less canescent than peduncles; sepals slightly unequal, suborbicular, obtuse, mucronulate convex, coriaceous, glabrous, outer 6 × 5 mm, inner 8-9 mm; corolla c. 4 cm long, funnel-shaped, pink, glabrous, limb c. 2.5 cm diam. Capsules glabrous; seeds 5 mm, subglobose, pilose with hairs up to 10 mm long.

Distribution.

Apparently endemic to Eastern Cuba.

CUBA. Guantánamo: Carretera de Quibiján, Baracoa, Bro. Alain & M. López 7119 (HAC, HAJB); Río del Padre, Bro. B. Hioram 4243 (HAC); Monte Libano, E.L. Ekman 10301 (S); Sierra de Imias, J. Bisse et al. HAJB52454); Río Duaba, J. Bisse et al. (HAJB39654). Holguín: Sierra del Cristal, E.L. Ekman 15916 (S); Montes de Gran Tierra, Moa, J. Acuña 3320 (HAC); Moa hacia La Melba, J. Bisse & H. Lippold (HAJB11379).

Note.

This species is characterised by its large, ovate, abaxially sericeous leaves, glabrous sepals and pink corolla.