A foundation monograph of Ipomoea (Convolvulaceae) in the New World Author Wood, John R. I. Author Munoz-Rodriguez, Pablo Author Williams, Bethany R. M. Author Scotland, Robert W. text PhytoKeys 2020 143 1 823 http://dx.doi.org/10.3897/phytokeys.143.32821 journal article http://dx.doi.org/10.3897/phytokeys.143.32821 1314-2003-143-1 F6F11A6EE4FF5A1885CEA2B60AE965A5 26. Ipomoea altoparanaensis O'Donell , Arq. Mus. Paranaense 9 : 210. 1952. ( O'Donell 1952: 210) Ipomoea paranaensis Hassl. , nom. nud. Add. Plantae Hasslerianae 18. 1917. (Hassler 1917: 18). Type. PARAGUAY. Alto Parana , K. Fiebrig 5812 (holotype LIL001231, isotype GH, K, SI). Description. Trailing perennial; stems stout, densely tomentellous. Leaves petiolate. 5-11 x 2-8 cm, ovate to elliptic, obtuse, mucronate, margin entire to slightly undulate, base broadly cuneate to shallowly cordate, both surfaces sericeous-tomentose, the venation highlighted; petioles 2-5 cm,tomentose. Inflorescence of long-pedunculate 3-5-flowered cymes; peduncles 5-19 cm, tomentose; bracteoles 9-10 x 2.5 mm, tomentose, caducous; secondary and tertiary peduncles 2-4.5 cm; pedicels 6-25 mm, densely tomentose; sepals subequal or interior slightly shorter, 10-14 x 8-11 mm, broadly elliptic to subglobose, obtuse and mucronate, tomentose; corolla 7-9 cm long, funnel-shaped, pink, tomentose, limb 5 cm diam. Capsules and seeds unknown. Distribution. Endemic to Paraguay and only known from two collections. It grows in open cerrado. PARAGUAY. Alto Parana : Hernandias, Prop. Takuru Puku de la Itaipu Binacional, M. Vera et al. 2384 (FCQ). Note. Very distinct are the silvery sericeous leaves with highlighted veins. It is very like forms of Ipomoea nitida from Corrientes but with the distinct sericeous-tomentose indumentum.