Ipomoea serrana Sim.

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

152. Ipomoea serrana Sim. -Bianch. & L.V. Vasconc., Brittonia 68: 143 2016. (Vasconcelas et al. 2016: 143)

Type.

BRAZIL. Bahia, Andaraí, Serra das Tres Barras, L.V. Vasconcelas & J.J. Oliveira 673 (holotype HUEFS, isotypes NY, SP).

Description.

Liana with tuberous suborbicular rootstock, all vegetative parts glabrous. Leaves petiolate, 3.5-10.5 × 3-5 cm, obovate, apex rounded to emarginate, base attenuate, venation actinodromous with secondary main veins; petioles 0.7-1.8 cm. Inflorescence of axillary, often compounded, pedunculate cymes; peduncles 1-3 cm; bracteoles ovate, c. 2 mm long, caducous; secondary peduncles 1-2 cm; pedicels 1-2.5 cm; sepals subequal, 7-8 × 5 mm, coriaceous, ovate, rounded, the inner with scarious margins; corolla 4-6.5 cm long, funnel-shaped, deep pink, glabrous, limb weakly lobed. Capsules ellipsoid, 10-12 × 7-10 mm, glabrous; seeds 6 mm long, pilose on the margins.

Illustration.

Vasconcelas et al. (2016: 143-144).

Distribution.

Endemic to the eastern part of the Chapada Diamantina between 450 and 1200 m in Bahia.

BRAZIL. Bahia: Lençois, Serra Barro Branco, M. I. Cartazo 03 (ALCB, HUEFS).

Note.

Differs from I. pintoi in having leaves with actinodromous venation (one main vein and two secondary veins) with 4 or 5 pairs of lateral veins (vs. brochidodromous in I. pintoi with 9-12 pairs of veins). The leaves are also rounded to emarginate, not acute to obtuse at the apex.