Ipomoea pittieri O'Donell

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

280. Ipomoea pittieri O'Donell , Lilloa 23: 499. 1950. ( O’Donell 1950b: 499)

Type.

VENEZUELA. Guárico, Laguna de la Mesa de El Sombrero, H. Pittier 12470 (holotype NY00319208, isotypes G, M, NY, VEN, US).

Description.

Prostrate herb, stems somewhat succulent, rooting at the nodes, glabrous. Leaves long-petiolate, palmately divided into 5-7 lobes, appearing to be formed of 3 leaflets, the central leaflet elliptic to lanceolate, 2-3.5 × 0.3-0.8 cm, basally attenuate, the lateral segments bipartite, sometimes with an additional simple lobe; petioles 3.5-7.5 cm. Flowers solitary, axillary; peduncles 0-2 mm; bracteoles 2-3 mm, obovate acute, scarious; pedicels very long, 3-15 cm; sepals similar, 3-3.5 mm long, oblong-elliptic, obtuse to emarginate, somewhat scarious, glabrous; corolla 2-3 cm long, funnel-shaped, pink with dark throat, glabrous, limb unlobed, c. 1.5 cm diam.

Distribution.

Seasonally flooded plain in the Llanos of Venezuela and the lower Magdalena in Colombia.

COLOMBIA. Atlántico: A. Dugand 4828 (US).

VENEZUELA. Anzoátegui: Río Caní, entre Guanipa y Cantaura, H. Pittier 15111 (VEN). Apure: just south of Mantecal, G. Davidse et al. 3886 (MO, FTG); Montecal, B. Sergios (MO, PORT); Sabana de la Candelaria, H. Guyon 131 (P). Falcón: Carretera Marsillal-Geritu, B. Trujillo 8804, (ARIZ). Guárico: Calabozo, Palmar de las Barbitas, R.A. Montes 933 (MO).

Note.

A very distinctive prostrate rooting herb with palmately divided leaves.