Ipomoea meyeri (Spreng.) G. Don

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

305. Ipomoea meyeri (Spreng.) G. Don , Gen. Hist. 4: 275. 1838. (Don 1838: 275)

Convolvulus meyeri Spreng. , Syst. Veg. 1: 597 1824 [pub.1825]. (Sprengel 1824: 597). Type. Plant of unknown origin, T. Meyer in Herb. Willd (holotype B-W03633 as Convolvulus cuspidatus ).

Convolvulus hederaceus Mill., Gard. Dict. , ed. 8. 1768. (Miller 1768 Convolvulus No. 17), nom. illeg., non Convolvulus hederaceus L. (1753). Type. JAMAICA. Sloan s.n. (BM000589539).

Ipomoea brachypoda Benth. , Bot. Voy. Sulphur 135 1844 [pub. 1845]. (Bentham 1845: 135). Type. PANAMA. “Colombia”, Sinclair s.n. (lectotype K000612870, designated here).

Ipomoea caerulea Bello , Anales Soc. Esp. Hist. Nat. 10: 296. 1881. (Bello y Espinosa 1881: 296), nom. illeg.,non Roxb. (1818). Type. PUERTO RICO. Bello, (not found, probably B†).

Ipomoea iostemma House , Ann. New York Acad. Sci. 18: 207. 1908. (House 1908b: 207). Type. COSTA RICA. Nicoya, A. Tonduz 13680 (NY00319099, isotype K).

Ipomoea iodantha Brandegee, Univ. California Publications in Botany 4(19): 383. 1913. Type. MEXICO. Baja Caifornia Sur, Cape region, La Mesa, T.S. Brandegee s.n. (UC105204).

Ipomoea chiapensis Brandegee , Univ. Cal. Publ. Bot. 6; 60. 1914 (Brandegee 1914: 60). Type. MEXICO. Chiapas, Tonala, C.A. Purpus 6907 (holotype UC172963, isotypes BM, F, MO, NY).

Type.

Based on Convolvulus meyeri Spreng.

Description.

Twining herb, possibly annual; stems slender, glabrous to thinly pubescent or pilose. Leaves petiolate, 2-9 × 1.7-7.5 cm, ovate-deltoid, cordate with rounded auricles, apex acuminate, shortly mucronate; margin slightly undulate or with a broad triangular lateral tooth on either side above the rounded auricles, rarely shallowly 3 lobed, usually glabrous, sometimes adaxially thinly pilose; petioles 0.5-10 cm, thinly pilose. Inflorescence of dense pedunculate axillary clusters, noticeably shorter than the leaves; peduncles 0.3 to 4(-8) cm, glabrous; bracteoles 7-25 mm, linear, thinly pilose, persistent; secondary peduncles 0-17 mm; pedicels 2-7 mm, glabrous; sepals subequal, herbaceous, linear-lanceolate, long-acuminate with a partially recurved apical mucro, outer (12-)15-17 × 2 mm, accrescent to 20 × 4 mm, glabrous, thinly or densely long-pilose especially towards the base, inner sepals with thin scarious margins, c. 2 mm shorter; corolla 2.3-3 cm long, subcampanulate, the tube white but lobes blue, glabrous, limb 2 cm diam., entire. Capsules 6-8 × 5-6 mm, ovoid, rostrate with 4 mm long persistent style, scurfy puberulent; seeds 4 × 3 mm, tomentose.

Illustration.

Acevedo-Rodríguez (2005: 172); Austin (1998: 403); Figures 7A , 11K , 149 .

Distribution.

Moist scrubby forest and disturbed bushy habitats, usually below 500 m, from northern Brazil and Peru to NW Mexico and the larger Caribbean Islands; apparently absent or rare in some areas including smaller islands, southern Colombia, Guatemala and Belize and very scattered in occurrence towards the limits of its range, especially in South America.

BRAZIL. Pará: Santarém, Zerny s.n. (W).

PERU. Cusco: La Convención, Echarate, Papelpata, G. Calatayud et al. 4137 (MO, OXF).

ECUADOR. Guayas: J.E. Madsen 63753 (AAU); C.H. Dodson & A. Gentry 13872 (MO). El Oro: J. Steyermark 54079 (F). Esmeraldas: J. Hudson 731 (MO).

COLOMBIA. Atlántico: Barranquila, H. Elias s.n. (COL). Bolívar: Turbaco, E.P. Killip & A.C. Smith 14232 (F, US); J. Espina 818 (COL). Cesar: C. Allen 835 (K, MO). Córdoba: B. Anderson 1895 (COL, K). Magdalena: Santa Marta, H.H. Smith 1573 (BM, E, K, MO, NY, P, S).

VENEZUELA. Anzoátegui: Libertad, G. Davidse & A.C. González 19736 (MO). Aragua: Tovar, A. Fendler 934 (K, MO). Bolívar: E. Holt & W. Gehriger 181 (NY, US, VEN). Carabobo: Barbula, Ll. Williams & A.H.G. Alston 342 (P, BM, S). Dist. Fed.: T. Croat 21596 (MO). Miranda: K.R. Robertson & D.F. Austin 219 (MO).

PANAMA. Herrera, P. H. Allen 4073 (MO); Chiriqui, T.B. Croat 22542 (MO).

COSTA RICA. Guanacaste, U. Chavarría 1370 (K, MO); Puntarenas, B.E. Hammel 18633 (CR, MO); San José, D. Santamaria 377 (CR, MO).

NICARAGUA. Nueva Segovia, P.P. Moreno 13354 (MO); Rivas, W.D. Stevens & O.M. Montiel 30424 (MO).

HONDURAS. Comayagua, C.H. Nelson et al. 6265 (MO)

EL SALVADOR. Morazán, J.M. Tucker 482 (K); Santa Ana, Metapán, J. Monterrosa 2108 (LAGU, MO, W).

GUATEMALA. Fide Standley and Williams 1970: 41.

MEXICO. Baja California Sur: type of Ipomoea iodantha . Chiapas: type of Ipomoea chiapensis . Guerrero: Petatlan. E. Langlassé 641 (K); Coyuca, G.B. Hinton 6908 (K); Mina, G.B. Hinton 9808 (BM, K); ibid., G.B. Hinton. 9674 (K). Michoácan: Lázaro Cárdenas, near La Mira, E. Carranza & I. Silva 6882 (IEB). Oaxaca: Tehuantepec, S.H. Salas et al. 3377 (MEXU, MO). Querétaro: Jalpán de Serra, Tancanaquito, E. Carranza & I. Silva 6000 (IEB). Quintana Roo: José María Morelos, F. Gaumer et al. 2125 (F, MO, S). Sonora: Mun. Alamos, Río Mayo, A.C. Sanders et al. 12560 (ARIZ); Rancho Mezquite Cuate, Arroyo de Alamos, C.D. Bertelsen & C. Smith 92-134 (ARIZ). Vera Cruz: J.A. McDonald 1954 (XAL). Yucatán: Izamal, F. Gaumer et al. 991 (K, MO, S).

CUBA. Bro. Clemente 5694 (HAC), 5732 (HAC); C. Wright 451 (K); Guantanamo, Bayate, E.L. Ekman 6555 (BM, S).

JAMAICA. McFadyen s.n. (K); E.T. Robertson 768 (K); St. Andrew, G.R. Proctor 8280 BM); ibid., C.D. Adams 8509 (BM), St Thomas, G.R. Proctor 2421 (BM).

HAITI. E.L. Ekman H7221 (K, S); St. Raphael, E.C. Leonard 9102 (S, US).

DOMINICAN REPUBLIC. E.L. Ekman H10916 (S); H. A. Allard 13880 (MO, S); A. Liogier 9065-21 (MO).

PUERTO RICO. P. Sintenis 828 (MO, S), 5533 (BM, K).

TRINIDAD. A. Fendler 587 (BM, K).

Figures

Figure 7. Sepals of Ipomoea species. A I. meyeri B I. ternifolia C I. cryptica D I. heterodoxa E I. sericosepala F I. splendor-sylvae G I. squamisepala H I. trifida. Photographs of A (Anderson 1895) B (Pringle 4439) C (Soto et al. 1331) E (Wood & Soto 27550) F (Wilkin 472) and H (Smith 1570) by John Baker; D (Wallnoefer 9506) by John Wood; G (Mendoza 4902) by Moises Mendoza.

Figure 11. Seeds of Ipomoea A I. peteri B I. murucoides C I. carolina D I. eggersiana E I. longibarbis (with and without marginal hairs) F I. clavata G I. violacea H I. acanthocarpa J I. parvibracteolata K I. meyeri L I. jujuyensis M I. cholulensis N I. minutiflora P I. tiliacea. A from Wallnoefer & Tut-Tesucun 9662; B from Pringle 6066; C from Gillis 12906; D from Urote 35; E from Killeen et al. 4199; F from Fuentes & Miranda 10895; G from Stearn 322; H from Wurdack & Monachino 39830; J from Silva et al. 18; K from Smith 1573; L from Rose et al. 23251; M from Hinton 11166; N from Stevens & Montiel 26592; P from Curtiss 249. Drawn by Rosemary Wise.

Figure 149. Ipomoea meyeri. A habit B stem and leaves C inflorescence D outer sepal E inner sepal F corolla opened out to show stamens G ovary and style H calyx in fruit J capsule K seed. Drawn by Rosemary Wise A, C-H from Anderson 1895 B from Araya 3, J, K from H. H. Smith 1573.