Ipomoea daturiflora 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

405. Ipomoea daturiflora Meisn. in Martius et al. , Fl. Brasil. 7: 273. 1869. (Meisner 1869: 273)

Type.

BRAZIL. Rio de Janeiro, Serra Farmarati, 1832, L. Riedel s.n. (sheet numbered 119 with collector’s label attached and annotated Ipomoea datureflora [sic], LE, lectotype, designated here).

Description.

Perennial twining or trailing herb to 3 m, stems pilose. Leaves petiolate, 8-15 × 10-12, ovate, acute with a prominent mucro up to 6 mm long, base cordate, adaxially pubescent, abaxially paler and densely pubescent; petioles 4-9 cm, pilose. Inflorescence of few-flowered axillary cymes; peduncles1.5-11 cm, pilose; bracteoles 12-20 mm, linear-filiform, deciduous; pedicels 1-6 cm, pilose; sepals slightly unequal, outer 21-34 × 7-8 mm, lanceolate, acuminate, mucronate, ciliate and pilose towards base, inner slightly broader, ovate, mucronate, glabrous, with scarious margins; corolla 8-10 cm long, funnel-shaped, pink, glabrous; limb c. 4 cm diam. Capsules 12 × 15, compressed globose, rostrate; seeds not seen.

Distribution.

A Brazilian endemic principally recorded from around Rio de Janeiro in disturbed bushy places.

BRAZIL. Espirito Santo: Santa Teresa, Pedra de Onça, R.C. Forzza 7538 (RB). Piauí: Ipiranga de Piauí, Queiroz et al. 10195 (OXF, HUEFS). Rio de Janeiro: T. Plowman & de Lima 12898 (F); A.L. Menescal 118 (RB); Giordano et al. 2260 (RB); Serra dos Orgãos, P. Occhioni 8077 (MBM). It is also recorded from Minas Gerais (Flora do Brasil 2020 under construction) although this seems improbable. The record from Piauí is very disjunct, but appears correct.

Note.

This species is distinctive because of its very long pedicels and, especially, the elongate sepals.