Ipomoea pohlii Choisy in A.P. de Candolle

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

103. Ipomoea pohlii Choisy in A.P. de Candolle , Prodr. 9: 355. 1845. (Choisy 1845: 355)

Ipomoea angustisepala O'Donell , Lilloa 26: 362. 1953. ( O’Donell 1953a: 362). Type. BRAZIL. Goiás: Upland and campo near Pose, G. Gardner 4292 (holotype K000612839).

Type.

BRAZIL. J.B. Pohl s.n. (lectotype BR00005307708, designated here; isolectotypes BR, K, M, F (photo of specimen formerly at B).

Description.

Erect undershrub, presumably from a xylopodium to at least 1 m, stem tomentose to pubescent, woody below. Leaves subsessile, imbricate, 1.5-6 × 0.5-2.5 cm, oblong, oblong-ovate, acute and mucronate, rounded to truncate at base, variably hirsute from grey-villous to pubescent, paler beneath; petioles 0-3 mm. Inflorescence a short terminal bracteate raceme, flowers solitary in axils of bracts; bracts ± distinct from leaves, typically half the size of the upper leaves; peduncles 1-2 mm; bracteoles linear-lanceolate,15-20 × 3 mm, densely villous; pedicels 1-2 mm, villous; sepals subequal, 15-17 × 2-4 mm, lanceolate with a finely attenuate apex, villous; corolla 5-7 cm long, pink, pubescent, funnel-shaped; limb c. 4 cm diam. Capsules and seeds not seen.

Distribution.

Endemic to cerrado in Brazil where it is restricted to Bahia and Goiás.

BRAZIL. Bahia: Chapada Occidental de Bahia, 15 km N of Correntina, R.M. Harley et al. 21765 (K); 20 km N of Correntina, R.M. Harley et al. 21902 (CEPEC, K); 36 km SW of Correntina, A. Krapovickas 30171 (CTES, F); Mun. Barreiras, G. Hatschbach 42032 (CEPEC, FTG, MBM); San Desidério, E. Melo et al. 8179 (HUEFS). Goiás: R.M. Harley et al. 28588 (SP); Serra Geral de Goiás, H.S. Irwin et al. 14381 (NY); São Domingos, C. Cristóbal & A. Krapovickas 692 (CTES).

Lectotypification.

In choosing a lectotype we have designated the specimen at BR as it is the only syntype from Martius’ herbarium with the location included on the label.