Ipomoea murucoides Roem. & Schult.

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

http://dx.doi.org/10.3897/phytokeys.143.32821

persistent identifier

http://treatment.plazi.org/id/0391F05A-E8CC-0E0C-6C84-3D51E7EF6986

treatment provided by

PhytoKeys by Pensoft

scientific name

Ipomoea murucoides Roem. & Schult.
status

 

125 . Ipomoea murucoides Roem. & Schult.   , Syst. Veg. 4: 248. 1819. (Roemer and Schultes 1819: 248)

Convolvulus macranthus Kunth   , Nov. Gen. Sp. 3: 95. 1818 [pub.1819]. (Kunth 1819: 95). Type. MEXICO. Guanajuato, Humboldt & Bonpland s.n. (holotype P00670732).

Ipomoea macrantha (Kunth) G. Don   , Gen. Hist. 4: 267. 1838. (Don 1838: 267), nom. illeg., non Ipomoea macrantha Roem. & Schult. (1819)   .

Convolvulus quahutzehuatl Sesse & Moc.   , Pl. Nov. Hisp. 23. 1887 [pub.1888]. ( Sessé y Lacasta and Moçiño 1887-90: 23). Type. MEXICO. Sessé & Moçiño s.n. (holotype MA00603845).

Convolvulus arboreus Sesse & Moc.   , Pl. Nov. Hisp. 23. 1887 [pub. 1888]. ( Sessé y Lacasta and Moçiño 1887-90: 23). Type. MEXICO. Sessé & Moçiño s.n. (MA00603835, lectotype designated here; isolectotypes BM, F, MA).

Type.

A cultivated plant "e horto valentino" (whereabouts unknown).

Description.

Tree to 13 m high, trunk to 40 cm diam., white latex abundant, stems floccose with white hairs. Leaves petiolate, 9-20 × 1-7 cm, lanceolate, oblong-lanceolate to ovate, acuminate, base broadly cuneate, usually villous or pubescent when young, somewhat glabrescent; petioles 1-6 cm, tomentose, glabrescent. Inflorescence terminal or from upper leaf axils, laxly corymbose in structure; peduncles 0.3-2 cm, villous; bracteoles ovate, obtuse 10-15 × 5-10 mm, caducous; pedicels 1.5-5 cm, thickened upwards, more densely tomentose than peduncles; sepals slightly unequal, 14-28 × 9-20 mm, oblong-ovate, obtuse to subacute, white-tomentose, the inner slightly shorter but more densely tomentose; corolla 6-9 cm long, funnel-shaped, white with dull red throat, villous; limb c. 5 cm diam., undulate. Capsules 2-2.5 cm long, oblong-ellipsoid, glabrous; seeds 12 × 5 mm, pilose on the margins with hairs 10-15 mm long.

Illustration.

Carranza (2007: 75). Figures 3E View Figure 3 , 11B View Figure 11 , 76 View Figure 76 .

Distribution.

Dry scrub and open deciduous woodland from 600 to 2400 m from central Mexico south to Guatemala.

GUATEMALA. J. Castillo 1661 (F); J. Donnell Smith 1863 (K); Santa Rosa, Heyde & Lux   4733 (K); Guatemala City, O. & I. Degener 26487 (BM); Huehuetenango, A.F. Skutch 1938 (BM); Jalapa, B.T. Styles 141 (FHO).

MEXICO. Aguascalientes: Aguascalientes-Calvillo, J.S. Miller et al. 355 (MO, MEXU). Chiapas: D. E. Breedlove & R.F. Thorne 21298 (MO). Durango: O.H. Soule 2076 (MO). Est. México & Dist. Fed.: Mont de Guadelupe, E. Bourgeau 790 (BM, P, S); Ayotzingo, Chalco, A. Ventura 4351 (MEXU). Temascaltepec, G.B. Hinton 2786 (BM, K); ibid., San Lucas, G.B. Hinton 8755 (K). Guanajuato: Cerro Las Tetillas, G. Ibarra Manríquez & G. Cornejo Tenorio 6796 (MEXU, MO); Irapuato, E. Martínez & C.H. Ramos 39679 (MEXU). Guerrero: J.C. Soto & E.M. Martínez 3994 (MEXU, MO); San Pedro Atengo, R. Cruz Duran 2139 (MEXU). Hidalgo: J.L. Flores s.n. (MEXU). Jalisco: Tapalpa, E.J. Lott & J.A. Solis Magallanes 755 (MEXU, MO); ibid., H.H. Iltis et al. 816 (K, MEXU). Michoacán: Zitácuaro, J.C. Soto & S. Aureoles 7232 (BM, MEXU); Coalcomán, G.B. Hinton 12692 (K). Morelos: Cuernavaca-Cautla, T. Croat & D.P. Hannon 65738 (MEXU, MO). Nayarit: El Ocote, Sw of Yxtlan, Y. Mexia 800 (BM, MO). Oaxaca: C.A. Pringle 6066 (BM, K, MO, S); Santiago Chazumba, J.I. Calzada 24331 (K, MEXU); M. O. Dillon 683 (F); Zimatlan, A. Miranda & O. Hernández 694 (MEXU). Puebla: Tepoxuchil, F. Nicholas 622 (K); Cerro Toltepec, J.L. Contreras 7537 (MEXU). Querétaro: E. Carranza & A. Amador 4943 (MEXU); Los Cues, E. Argüelles 1933 (FTG, MEXU). Zacatecas: Coulter 1023 (K); Zapoqui, T. Croat 45088 (MEXU, MO); Villanueva, E.B. Enriquez 376 (MEXU).

Note.

Perhaps the most distinct of the Arborescens Clade because of the dense, white, woolly stem indumentum, large sepals and broadly cuneate leaf bases.

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Solanales

Family

Convolvulaceae

Genus

Ipomoea

Loc

Ipomoea murucoides Roem. & Schult.

Wood, John R. I., Munoz-Rodriguez, Pablo, Williams, Bethany R. M. & Scotland, Robert W. 2020
2020
Loc

Ipomoea macrantha

Roem. & Schult. 1819
1819