Ipomoea virgata Meisn. in Martius et al.

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

41. Ipomoea virgata Meisn. in Martius et al. , Fl. Brasil. 7: 241. 1869. (Meisner 1869: 241)

Ipomoea virgata var. paniculata Meisn. in Martius et al. , Fl. Brasil. 7: 241. 1869. (Meisner 1869: 241), nom. illeg, autonymic var.

Type.

BRAZIL. Minas Gerais, A.F. Regnell Ser. 3, 192 (lectotype BR0000005305797, designated by Wood et al. (2015: 43), isolectotypes K, S).

Description.

Ascending or erect undershrub from a woody xylopodium, stems woody, somewhat lanate. Leaves sessile, 3-7 × 2.5-5 cm, broadly ovate to narrowly elliptic, obtuse and apiculate, broadly cuneate at base, adaxially pubescent, abaxially whitish-floccose. Inflorescence of lax axillary cymes, forming an elongate terminal raceme, often somewhat compound below with branches to 7 cm in length, so appearing paniculate; peduncles 1-4.5 cm, villous; bracteoles lanceolate, acuminate, caducous; pedicels 5-8 mm; sepals subequal, 8-12 mm, ovate, acute, grey-tomentose; corolla 3-6 cm long, subcampanulate to broadly funnel-shaped, white(?), densely pilose with appressed hairs, limb 2.5-3.5 cm diam. Capsules (immature) 6-7 × 3-4 mm, narrowly ovoid, glabrous.

Distribution.

Apparently uncommon in both the cerrados of Brazil and Bolivia. In Bolivia only known from a single collection and in Brazil from scattered collections, mostly old, from three states.

BRAZIL. Mato Grosso: Santa Ana da Chapada, Robert 674 (BM), 701 (BM), 715 (BM). Minas Gerais: St Hilaire 354 (P); A.F.M. Glaziou 2179 (P); A. Macedo 1329 (S); Uberlandia, A. A. Barbosa 31776 (HUFU). São Paulo: Gaudichaud 316 (P); C.W. Mosén 1498 (P, S); A.F. Regnell 192 (S), 4289 (P).

BOLIVIA. Santa Cruz: Velasco, P.N. Noel Kempff Mercado, S. Jiménez & E. Gutiérrez 1274 (USZ).

Note.

A little known species with a paniculate inflorescence distinguished from Ipomoea haenkeana by its more woolly indumentum, ovate leaves and longer sepals.