Ipomoea hieronymi (Kuntze) O'Donell

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

publication ID	https://dx.doi.org/10.3897/phytokeys.143.32821
persistent identifier	https://treatment.plazi.org/id/1FE967BF-C2C5-8888-F080-5A4FB610B0C9
treatment provided by	PhytoKeys by Pensoft
scientific name	Ipomoea hieronymi (Kuntze) O'Donell
status

Treatment

45. Ipomoea hieronymi (Kuntze) O'Donell View in CoL View at ENA , Lilloa 14: 171. 1948. ( O’Donell 1948a: 171)

Mouroucoa hieronymi Kuntze , Revis. Gen. Pl. 3 (3): 217. 1898. (Kuntze 1898: 217). Type. ARGENTINA. Salta, San José, Lorentz & Hieronymus 220 (holotype B†, isotypes GOET, CORD00003758).

Argyreia megapotamica Griseb. , Symb. Fl. Argent. 263. 1879. (Grisebach 1879: 263), non Ipomoea megapotamica Choisy (1845) . Type. ARGENTINA. Córdoba, Ascochinga, Lorentz s.n. (possible lectotype (fide O’Donell 1948a: 179) CORD00006091).

Ipomoea kurtziana O'Donell , Lilloa 14: 179. 1948 ( O’Donell 1948a: 179). Type. Based on Argyreia megapotamica Griseb.

Ipomoea hieronymi var. kurtziana ( O'Donell) O'Donell , Lilloa 29: 163. 1959. ( O’Donell 1959b: 163).

Ipomoea hieronymi var. calchaquina O'Donell , Lilloa 29: 165. 1959. ( O’Donell 1959b: 165). Type. ARGENTINA. Catamarca, Dept. Andalgalá, camino de Capillitas a Santa María, O’Donell & T. Meyer 5198 (holotype LIL202799).

Type.

Based on Mouroucoa hieronymi Kuntze

Description.

Vigorous perennial, sometimes growing as a liana, stems pubescent to tomentellous. Leaves petiolate, 4-10(-15) × 4-10(-15) cm, ovate, cordate with rounded auricles, apex rounded and mucronate to acute or very shortly acuminate, adaxially dark green and densely puberulent, abaxially white-tomentose; petioles 2-11 cm, densely puberulent or tomentose. Inflorescence of long-pedunculate axillary cymes, usually 3-5-flowered; peduncles 3-20 cm, tomentose; bracteoles 5 mm long, ovate, caducous; secondary peduncles mostly 6-10 mm; pedicels 5-12 mm, tomentose; sepals subequal, 9-11 × 6-7 mm, ovate, grey-tomentose, often with a dark gland at base, acute to obtuse, inner slightly shorter with scarious margins; corolla 4.5-7 cm long, funnel-shaped, pink, tomentellous, limb c. 4 cm diam. Capsules ovoid, 8-10 mm long, glabrous; seeds 7-8 mm long, glabrous except sericeous angles.

Illustration.

Figures 9A View Figure 9 , 17D View Figure 17 , 32 View Figure 32 .

Distribution.

Common in the Andean region of northwestern Argentina extending into the south of Bolivia. It is found from around 700 to 2000 m in scattered locations by roadsides and along forest margins.

ARGENTINA. Catamarca: Santa Rosa, Alijilan, S. Pierotti 28348 (BM); E. Wall s.n. [29/11/1946] (S). Córdoba: Pierotti s.n. [27/1/1944] (LIL, S); Yacanto Calamuchita, Tirel 60 (G, P); Punilla, G. Seijo 1902 (CTES). Jujuy: Tumbaya, Volcán, J.G. Hawkes et al. 3758 (C, MO); Capital, A.L. Cabrera et al. 29926 (MO, SI). La Rioja: General Belgrano, F.N. Biurrun & E. Pagliari 2659 (CORD). Salta: La Caldera, L.J. Novara 6043 (G). San Luis: Villa Carmen, D.O. King 549 (BM); Chacabuco, R. Pozner & M.J. Belgrano 206 (CTES, SI). Tucumán: Burragaco, Cerro del Campo, S. Venturi 10346 (BM, MO); Tafí, T.M. Pedersen & J. Hjerting 921 (MO).

BOLIVIA. Chuquisaca: Calvo, 31 km SW of Cuevo, M. Mendoza et al. 2739 (USZ). Tarija: Cercado, K. Fiebrig 2655 (BM, NY, P). Gran Chaco, Serranía San Alberto, R. Chávez & R. Meneses 2954 (LPB). O’Connor, Cuesta de San Simón, A. Krapovickas & A. Schinini 38036 (CTES, LPB).

Note.

This species resembles Ipomoea argentinica and similar species in having leaves abaxially white-tomentose. It is close to I. megapotamica , the sepals often with a dark gland near the base, but differs in the tomentose leaves and longer sepals, which are about 10 mm in length.