Ipomoea gilana K. Keith

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

262. Ipomoea gilana K. Keith & J.A. McDonald, Syst. Bot. 42: 974. 2017. (Keith et al. 2017: 974)

Type.

UNITED STATES. New Mexico, 9 km N. of junction of State Highway 152 and Forest Service Road 157, K. Keith 12 (Holotype TEX, isotype UNM).

Description.

Perennial twining herb with stems up to 2 m long from a tap root 1-6 cm long. Leaves petiolate, 3-8 × 3-7 cm, entire or 5-7-lobed, lobes elliptic 1-6 × 0.5-2 cm, base cordate, apex acuminate, glabrous apart from the pubescent veins; petioles 3-9 cm, thinly pilose. Inflorescence of solitary axillary flowers, opening at night; peduncles 0-7 cm; bracteoles linear, 5 × 1 mm, linear, persistent; pedicels 15-25 mm, becoming recurved in fruit; sepals subequal, 11-14 × 3-5 mm, somewhat accrescent by 2 mm in fruit, ovate, acute or acuminate, outer adpressed pilose with scarious margins, inner glabrous, scarious; corolla narrowly funnel-shaped, 6-7 cm long, tube white, limb pale blue, limb 6-7.5 cm diam.; stamens shortly exserted or at mouth. Capsules ovoid, c. 15 × 15 mm, glabrous, trilocular; seeds (4-)6, black, 4-6 mm long, glabrous.

Distribution.

Endemic to open forest of Pinus and Quercus spp. in the Black Range in Gila National Park at 2045 m.

UNITED STATES. New Mexico: K. Keith & C. Hunter 2 (UNM).

Note.

A night-flowering species with pale blue flowers and shortly exserted stamens.