Ipomoea neei (Spreng.) 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

314. Ipomoea neei (Spreng.) O'Donell , Lilloa 29: 69. 1959 ( O’Donell 1959a: 69)

Calboa vitifolia Cav. Ic. 5: 51, tab. 476. 1794 [pub.1799]. (Cavanilles 1799: 51), non Ipomoea vitifolia Blume (1825-26). Type. MEXICO. Nayarit, San Blas, Nee s.n. (lectotyoe MA222539, designated here; isolectotypes MA).

Macrostemma vitifolia (Cav.) Pers. , Syn. Pl. 1: 185. 1805. (Persoon 1805: 185).

Quamoclit vitifolia (Cav.) G. Don , Gen. Hist. 4: 259. 1838. (Don 1838: 259).

Convolvulus neei Spreng. Syst. Veg. 1: 593-4. 1825 [pub.1824]. (Sprengel 1824: 593-4). Type. Based on Calboa vitifolia Cav.

Ipomoea peduncularis Bertol. , Novi Comment. Acad. Sci. Inst. Bononiensis 4: 408-9. 1840. (Bertoloni 1840: 408-9). Type. GUATEMALA. Escuintla, J. Velazquez s.n. (whereabouts not traced).

Ipomoea hartwegii Meisn. in Martius et al. , Fl. Brasil. 7: 220. 1869. (Meisner 1869: 220), nom. illeg., non Benth. (1839). Type. GUATEMALA. K.T. Hartweg 603 (lectotype K000612755, designated here; isolectotypes BM, K).

Ipomoea acaponetensis M.E. Jones, Contr. W. Bot. 18: 65. 1933. (Jones 1933: 65). Type. MEXICO. Nayarit, Acaponeta, M.E. Jones 23247 (holotype POM, now RSA0002385).

Type.

Based on Calboa vitifolia Cav.

Description.

Somewhat woody climber (less commonly trailing), stems glabrous. Leaves petiolate, 4-14 × 3.5-13, palmately 3-lobed, lobes acute to acuminate, base deeply cordate with right-angled sinus, lateral lobes often with some marginal teeth, moth surfaces nearly glabrous but veins pubescent especially near the base beneath; petioles 2.5-11 cm. Inflorescence usually very long-pedunculate, corymbose, many-branched with 10-70 flowers; peduncles 0.5-40 cm; bracteoles 1-2 mm, ovate, caducous; secondary peduncles 1-1.5 cm, tertiary to ultimate peduncles1-2.5 cm; pedicels 8-20 mm, slender; sepals, unequal, outer 2.5-4 mm, ovate, obtuse, the mucro 2-5 mm, often spreading, inner 4-4.5 mm, the mucro up to 5 mm long; corolla 2.5-3.5 cm long, tube 1-2.4 cm, widened above a cylindrical base, the limb deeply lobed 1-1.5 cm, the lobes oblong-lanceolate, yellow or yellow with purple markings in throat, glabrous, anthers and style strongly exserted. Capsules ovoid, c. 9 × 8 mm, glabrous, erect, muticous; seeds irregularly hirsute.

Illustration.

Figures 8C , 153 .

Distribution.

River margins, swampy areas and similar moist scrub at low altitudes from Panama north to central Mexico.

PANAMA. B.C. Seemann (BM); Chiriqui, W.H. Lewis et al. 410 (MO).

COSTA RICA. Tucurriques, A. Tonduz 12972 (BM, K), 2237 (BM); San José, Mora, El Rodeo, A. Cascante 1242 (CR, K).

NICARAGUA. Madriz, Cerro El Fraile, P. Moreno 23511 (BM, MO); Chontales, Hac. San Martín, W.D. Stevens 22865 (BM, MO).

HONDURAS. J. Hjalmarson (S); Copán Ruinas, A. Molina & A.R. Molina 34252 (MO).

EL SALVADOR. V. Hartman (S); Lago Ilopango, K. Sidwell et al. 570 (BM, MO).

GUATEMALA. Santa Rosa, Heyde & Lux 4349 (BM, K); Quezaltenango, A.F. Skutch 2043 (BM); Aceituna, J. Donnell Smith 1874 (K).

MEXICO. Chiapas: El Chichon, Burnham 132 (BM); Ocosingo, E. Martínez & R. Lombera 26191 (K); E. Tripp et al. 5757 (COLO, OXF). Colima: E. Palmer 1104 (BM, K); Rancho el Jabalí, L. Rico & E. Martínez 990 (K). Durango: San Dimas, M. González 2404 (IEB). Est. México & Dist. Fed.: Temascaltepec, Luvianos, G.B. Hinton 3199 (BM, K), ibid., Tenaya, G.B. Hinton 3320 (BM, K). Guerrero: Montes de Oca, Vallecitos, G.B. Hinton 11723 (K); Río de Santiago, Galeana, G.B. Hinton 11196 (K); Arcelia, V.W. Steinmann & J.M. Porter 839 (IEB). Jalisco: San Sebastián, Y. Mexia 1790 (BM, MO); Zacoalco de Torres, J.A. Lomelí (IEB); Lago La María, A.C. Sanders et al. 10694 (K, MO). Michoacán: Coalcomán, Aguila, G.B. Hinton 15846 (K); Aguililla, E. Carranza et al. 6679 (IEB). Nayarit: Tepic-Puerto Vallarta, R. Ramírez & G. Flores 863 (MEXU, MO). Oaxaca: Santa María Chimalapa, H. Hernández 958 (MO). Sinaloa: Sierra Tacuicamona, H.S. Gentry 5578a (MEXU, MO). Tabasco: Teapa, M.A. Margaña et al. 1016 (MO). Veracruz: Sanborn, C.R. Orcutt 3034 (BM, MO); Catemaco, G. Martínez Calderón 1836 (BM, MEXU, MO).

Typification.

In choosing a lectotype of Ipomoea hartwegii Meisn. , we have selected the Kew specimen as the most complete of the existing syntypes. It is not clear where the specimen Meisner used to prepare the protologue was housed.

Figures

Figure 8. Corollas showing variations in form (side view), size, limb lobing and stamen exsertion. A Ipomoea argentea B I. repanda C I. neei D I. electrina E I. habeliana F I. santillanii G I. nationis H I. rubriflora J I. longistaminea K I. megapotamica L I. megalantha M I. neriifolia N I. syringifolia P I. ramosissima Q I. elongata R I. mucronatoproducta. A from Wood et al. 25639 and photo; B from Whitefoord 5244; C from Skutch 2043; D from Breedlove 27626; E from Bentley 203; F from Bourgeau 3024; G from Saunders 987; H from Wood et al. 27678; J from Pastore et al. 2678; K from Wood et al. 28060; L from Hassler 9114; M from Rezende et al. 1011; N from Stutz 1426 and photo; P from Bang 2246; Q from Purpus 3904; R from Wood & Villarroel 25474. Drawn by Rosemary Wise.

Figure 153. Ipomoea neei. A habit B inflorescence from same habit C abaxial leaf surface D outer sepal E inner sepal F corolla opened out to show stamens G ovary and style H capsule and calyx J seed. Drawn by Rosemary Wise A-C from Skutch 2043; D-H from Burnham 132; J from Tripp et al. 5757.