Ipomoea sp. D (E. Jara 990)

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

425. Ipomoea sp. D (E. Jara 990)

Description.

Perennial twining herb with wiry stems to 1.2 m, latex white, rootstock swollen, purplish. Leaves petiolate, 2-3.8 × 0.3-1 cm, lanceolate, base rounded to cuneate, apex acute and aristate, both surfaces glabrous; petiole 4-10 mm, weakly winged near base. Inflorescence of very shortly pedunculate axillary cymes with up to 4 flowers; peduncles 3-5 mm long, muricate; bracteoles not seen; pedicels 10-15 mm long; sepals unequal, coriaceous, glabrous, outer 5-10 mm, ovate, obtuse, inner oblong, rounded, 8-12 × 4-6 mm; corolla 5.5-6 cm long, deep pink, hypocrateriform, limb 4-5 cm diam., anthers exserted. Capsules 5-10 × 8-15 mm, compressed-globose; seeds 3-5 × 5-10 mm, pubescent.

Distribution.

Endemic to the Marañon valley where it grows in seasonally dry deciduous scrub at 2360 m.

PERU. Ancash: Prov. Antonio Raimondi, Dist. Chingas, Hanan Raqui, E. Jara 990 (USM).

Notes. A description is being prepared by the discoverers of this species but initial molecular studies have not confirmed its placement.

The roots are eaten raw by people in the neighbourhood of the collection locality.