Ipomoea graminifolia

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

365. Ipomoea graminifolia J.R.I. Wood & Scotland, Phytokeys 88: 20. 2017. (Wood et al. 2017d: 20)

Type.

BRAZIL. Goiás, Fazenda Agua Fria, Alto Paraíso de Goias, cerca 10 km en direção a Teresina de Goias, 14 04 217S, 47 30 336 W, 1448 m, 20 Feb. 2001, C. Munhoz, N. Rodrigues & K.M.O. Ramos 2567 (holotype MO, isotypes?).

Description.

Completely glabrous, slender, probably clambering perennial herb, stems thin, wiry, slightly woody. Leaves sessile, 2.5-5.5 × 0.05-0.1 cm. linear-filiform, acute, minutely apiculate. Inflorescence of solitary axillary flowers; peduncles 8-18 mm; bracteoles deltoid, 1mm long, caducous; pedicels 6-8 mm, thickened upwards; sepals unequal, 5-6 × 2 mm, broadly lanceolate, acute and mucronate, margin narrow, scarious; inner 7-9 × 2 mm, oblong-lanceolate, acute, margins broad, scarious; corolla 3-3.5 cm long, funnel-shaped, pink, glabrous, limb 2.5-3 cm diam., undulate, the midpetaline bands ending in acute points; stamens included. Capsules and seeds unknown.

Illustration.

Figure 177 .

Distribution.

High altitude endemic of campo limpo úmedo at 1400 m, only known from the type collection.

BRAZIL. Goiás: the type collection.

Note.

Similar to Ipomoea procumbens in being glabrous in all parts and with solitary axillary flowers and similar shaped unequal sepals. However, Ipomoea graminifolia differs in the much smaller calyx and corolla, the wiry stems, and the sessile, filiform leaves.

Figures

Figure 177. Ipomoea graminifolia. A habit B outer sepal C inner sepal D buds showing calyx. Drawn by Rosemary Wise from C. Munhoz et al. 2567.