Ipomoea lottiae

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

136. Ipomoea lottiae McDonald, Biótica 12 (3): 219. 1987. (McDonald 1987a: 219)

Type.

MEXICO. Jalisco, La Huerta, Est. Biologia, Chamela, E. Lott, J.A. Solis & S.H. Bullock 1833 (holotype MEXU00448374, isotypes MO, US, XAL).

Description.

Twining perennial, stems woody and wiry, pubescent. Leaves petiolate, 2-6.5 × 2-7 cm, ovate or, more commonly, 3-lobed, acute or obtuse, mucronate, basally cordate to subtruncate and then cuneate onto the petiole, adaxially thinly adpressed pubescent, abaxially silvery, adpressed pilose; petioles 1-4 cm. Inflorescence of few-flowered pedunculate cymes; peduncles 1-2.7 cm, pubescent; bracteoles linear c. 4 × 0.5 mm; pedicels 10-23 mm, pubescent; sepals unequal, outer 3-4 × 2-3 mm, ovate, obtuse and mucronate, thinly pubescent, inner larger, 6-7 × 2-4 mm, obovate-elliptic, retuse, the margins broadly scarious; corolla 4-5.5 cm long, salverform the tube 2-2.5 cm long, glabrous, cream, opening at night; stamens equal, very short; anthers and style included. Capsules 9-11 × 7 mm, glabrous, ovoid, muticous; seeds 5 × 3 mm, long-pilose on the margins with hairs up to 12 mm long.

Illustration.

McDonald (1987a: 220).

Distribution.

Almost endemic to the Chamela region in dry deciduous forest at low altitudes.

MEXICO. Guerrero: Cortez & Lozano 2621 (MEXU), fide McDonald (1987). Jalisco: Chamela, A. Gentry & L. Woodruff 74402 (FTG, MO); E. Lott 1207 (MEXU, MO); 11 km S of Guadalajara, M. Harker & H. Mellowes 91 (BM); Michoacán: Aquila, Barranca de Chila, J.C. Soto et al. 2621 (IEB).

Note.

This species is distinguished by the white salverform corolla and 3-lobed leaves, but is otherwise very similar to Ipomoea proxima and I. scopulorum .