Ipomoea geophilifolia K. Afzelius

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

44. Ipomoea geophilifolia K. Afzelius , Svensk Bot. Tidskr. 60: 484. 1966. (Afzelius 1966: 484)

Type.

BRAZIL. Distrito Federal, Cabeça do Veado, March 1961, E.P. Heringer 8029 (whereabouts unknown, possibly number cited erroneously, neotype E.P. Heringer 8030 (UB), designated here).

Description.

Relatively slender twining or trailing herb, stems pubescent. Leaves petiolate, 2 -5.5 × 2-5 cm, ovate to suborbicular, mucronate, cordate with narrow basal sinus, pubescent to subtomentose on both surfaces, paler beneath; petioles 1.5-3.5 cm, pubescent. Flowers in 1-3-flowered axillary cymes; peduncles 2-3 cm; bracteoles linear, 6-10 mm, pilose, persistent; pedicels c. 5 mm, densely pubescent; sepals subequal, 12-16 × 4-6 mm, densely pubescent, lanceolate, acuminate, inner paler and less hairy on paler margins; corolla 5-6.5 cm long, pilose, pink, funnel-shaped, the tube purple within, limb 4 cm diam., slightly lobed. Capsules and seeds not seen.

Distribution.

A local endemic species of cerrado in the Brazilian planalto at around 1100-1200 m near Brasilia.

BRAZIL. Dist. Fed.: H. Irwin et al. 12261 (FTG, NY, MO); Campo Experimental UB, G. Kirkbride 1444 (F, K); E.P. Heringer 15396 (FTG). Goiás: Mun. Cristalina, G. Hatschbach & J. Cordeiro 51799 (MBM); H.S. Irwin et al. 13773 (FTG).

Typification.

Afzelius cited Heringer 8029 as the type but as this is neither at S nor UB, it is possible the number was cited erroneously. Heringer 8030 was cited as a paratype and is at UB, so is here designated as neotype.

Note.

This species is distinguished by its relatively slender habit, suborbicular leaves, persistent bracteoles and lanceolate sepals 12-16 mm long.