Ipomoea peteri (Kuntze) Staples & Govaerts

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

177. Ipomoea peteri (Kuntze) Staples & Govaerts , Phytologia 97 (3): 220. 2015. (Staples et al. 2015: 220)

Ipomoea sericophylla Peter, Nat. Pflanzenfam. IV (3a): 31. 1897 [pub. 1891). (Peter 1891: 31), nom. illeg., non Ipomoea sericophylla Meisn. (1869) . Type. GUATEMALA. Bernoulli & Cario 1892 (lectotype GOET005709, designated by Staples et al. [2012: 676]).

Mouroucoa peteri Kuntze , Revis. Gen. Pl. 3 (2): 218. 1898. (Kuntze 1898: 218). Type. Based on Ipomoea sericophylla Peter

Ipomoea tuxtlensis House , Ann. New York Acad. Sci. 18: 256. 1908. (House 1908b: 256). Type. MEXICO. Chiapas, E.W. Nelson 3094 (holotype US00111481).

Pharbitis lindenii M. Martens & Galeotti , Bull. Acad. Roy. Soc. Bruxelles 12 (2): 272. 1845. (Martens and Galeotti 1845: 272), non Ipomoea lindenii M. Martens & Galeotti (1845) . Type. MEXICO. Tabasco, Linden 296 (holotype BR00006973063, isotypes K, MICH).

Ipomoea silvestris Brandegee , Univ. Calif. Publ. Bot. 6 (8): 190. 1915. (Brandegee 1915: 190). Type. MEXICO. Veracruz, C.A. Purpus 7309 (holotype UC174944, isotype US).

Type.

Based on Ipomoea sericophylla Peter

Description.

Perennial climber apparently with tuberous roots; stem pubescent. Leaves petiolate, 3.5-9 × 3.5-9, sometimes ovate but usually 3-lobed to about halfway or slightly less, lobes elliptic, narrowed at both ends, occasionally ovate or somewhat repand, acute or shortly acuminate, mucronate, base truncate to cordate, often cuneate onto the petiole, adaxially appressed pilose, abaxially softly adpressed silvery-grey pilose; petioles 2-8.5 cm, pubescent. Inflorescence of few-flowered, pedunculate axillary cymes; peduncles usually short, 1-5 cm, pubescent; bracteoles 4-12 mm, filiform; secondary peduncles c. 5 mm; pedicels 5-12 mm, thickened upwards, pubescent; sepals unequal, outer 8-11 × 3 mm, oblong-lanceolate, acute, often mucronate, tomentose, inner 11-14 × 4-5 mm, broadly oblong-elliptic, rounded to retuse, glabrous or pubescent in the centre but with scarious, glabrous margins; corolla 4-6 cm long, funnel-shaped, deep pink, glabrous, limb c. 3 cm diam. Capsules 7-10 mm, globose, shortly rostrate, glabrous; seeds 4 × 3 mm, brown, lanate.

Illustration.

Figures 11A , 102 .

Distribution.

Endemic to Central America from Nicaragua north to Southern Mexico, growing at low altitudes, in various kinds of woodland including pine forest, secondary woodland and flooded forest.

NICARAGUA. Atlántico Norte, Cerro Waylawás, J.J. Pipoly 4490 (MO).

BELIZE. Orange Walk District, C. Whitefoord 8035; Whitehills, C. Whitefoord 8288 (BM); Stann Creek, W.A. Schipp 421 (BM, K); Northern River, P.H. Gentle 1038 (K); Stann Creek, P.H. Gentle 3073 (K); Toledo, Deep River, Z. Goodwin & G. López 1709 (MO).

GUATEMALA. Petén, Lago Petén Itza, B. Wallnöfer & Tut-Tesucun 9662 (NY, MO, W); P.N. Tikal, R. Tun Ortíz 241(BM, F, MO).

MEXICO. Campeche: Calakmul, E. Martínez et al. 29268 (BM, MEXU). Chiapas: E. Martínez 14747 (ARIZ, MEXU); Tzimol, A. Reyes-García & G. Urquijo 791 (BM, MEXU); Ocosingo, Aguilar 2622 (BM, MEXU, MO). Quintana Roo: Benito Juárez, E.F. & H. Cabrera 3463 (MO); Nuevo Xcan, O. Téllez 2870 (BM, MEXU). Tabasco: Balancán, A. Novelo et al. 58 (BM, MEXU, MO); ibid., Naranjito, F. Menendez et al. 263 (K, MEXU, MO). Veracruz: Zacuapan, C.A. Purpus 7309 (BM); ibid., 10672 (K); Hidalgotitlan, B. Vazquez 1239 (BM). Yucatán: E. Martínez 31466 (BM, MEXU); Valladolid, Xuilub, B. Morgensen 1106 (AAU, K, NY); Buena Vista, G.F. Gaumer 769 (K, S).

Notes.

Somewhat variable in the density of the indumentum. It differs from Ipomoea eremnobrocha in the narrower, acute, mucronate outer sepals. It is generally more densely hirsute.

Hinton 8120 (K) from Acatitlan, Temascaltepec is correctly identified as this species but the location would appear to be wrong. There was perhaps an error in the labelling.

Figures

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 102. Ipomoea peteri. A habit B adaxial leaf surface C abaxial leaf surface D outer sepal E inner sepal F corolla opened out to show stamens G ovary and style H fruiting inflorescence with capsules J seed. Drawn by Rosemary Wise A-C from Morgensen 1106; D-G from Whitefoord 8288; H-J from Wallnoefer & Tut-Tesucun 9662.