Ipomoea nematoloba Urb.

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

207. Ipomoea nematoloba Urb. , Symb. Antill. 3 (2): 349. 1902. (Urban 1902-3: 349)

Type.

HAITI. Monte Bienac, W. Buch 587 (isotypes GH00054570, NY00111088).

Description.

Climbing perennial; stems glabrous, wiry, woody. Leaves petiolate, divided digitately into 5-7 lobes, the laterals sometimes pedate, lobes linear, 2.5-6.5 × 0.1-0.25 cm, often incurved, obtuse and mucronate; petioles 1.5-3 cm. Inflorescence of axillary and terminal leafy racemes 3-6 cm long; rhachis 1-6 cm, relatively stout; bracteoles caducous; pedicels 3-5 mm; sepals subequal, glabrous, coriaceous, 4-5 × 2 mm, elliptic to suborbicular, rounded, somewhat scarious, especially on the margins; corolla 1.5-2 cm long, greenish-yellow with pinkish lobes, glabrous, the tube 7-9 mm, the limb deeply lobed, the lobes oblong, up to 4 × 10 mm, stamens exserted. Capsules 10-11 × 5-6 mm, narrowly obovoid, style usually persistent, glabrous; seeds c. 3 mm long, long-pilose with hairs up to 8 mm long.

Distribution.

Endemic to Hispaniola, where it is common in dry forest.

HAITI. E.L. Ekman H2164 (S), H3066 (S), H6697 (S); Massif des Matheux, E.L. Ekman H5156 (K, NY, S).

DOMINICAN REPUBLIC. Azua, A. Liogier 14947 (NY); Santiago. A. Liogier 15278 (NY); A. Liogier 16915 (NY).

Note.

This species is characterised by the deeply lobed corolla and obovoid capsules. The leaves are digitately lobed with linear lobes.