Ipomoea yaracuyensis J.R. Grande & W. Meier

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

109. Ipomoea yaracuyensis J.R. Grande & W. Meier , Brittonia, 63(3): 365. 2011. (Grande et al. 2011: 365)

Type.

VENEZUELA. Yaracuy: Sierra de Aroa, 1480 m, L. Aristeguieta & E. Foldats 1500 (holotype VEN34023).

Description.

Twining liana of unknown height; stem thin, cream-coloured, glabrescent. Leaves petiolarte, 7-13 × 5.3-10 cm, ovate-deltoid, apex acuminate, base cordate with rounded auricles, margin often with a distinct angle, adaxially nearly glabrous, abaxially puberulent on the veins, venation prominent; petioles 4.5-7 cm, thinly puberulent. Inflorescence of 1-4-flowered pedunculate, axillary cymes; peduncles 1-4(-8) cm, puberulent; bracteoles 4-8 × 1 mm, linear, deciduous; secondary peduncles c. 10-15 mm; pedicels 10-25 mm; sepals subequal, obovate, mucronate, adpressed puberulous near base, outer 23-31 × 12 mm, inner sepals slightly smaller; corolla c. 7 cm long, creamy-yellow with purplish tube, funnel-shaped, thinly pubescent; limb c. 5-6 cm diam. Capsules 2-2.5 cm, subglobose, rostrate, the persistent style base c. 2 mm long; seeds 10 × 5 mm, tomentose and with long silky marginal hairs up to 14 mm long.

Illustration.

Grande et al. (2011: 366).

Distribution.

Endemic to the coastal Andes of Venezuela, growing in evergreen forest around 800-1200 m.

VENEZUELA. Yaracuy: Sierra de Aroa, Cerro Tigre, R. Liesner & A.C. González 9703(MO, VEN); El Amparo, E. Diederichs 70 (MO, VEN); Bruzual, arriba de Campo Elías, E. Rutkis 460 (VEN).

Note.

This species is placed here because of its large pubescent sepals and puberulent corolla but its position is uncertain.