Ipomoea crinicalyx S. Moore

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

408. Ipomoea crinicalyx S. Moore , Trans. Linn. Soc. London, Bot. 4: 402. 1895. (Moore 1895: 402)

Convolvulus crinicalyx (S. Moore) Kuntze , Rev. Gen. 3 (2): 213. 1898. (Kuntze 1898: 213).

Ipomoea seleri Millsp. , Bot. Jahrb. Syst. 36, Beibl. 80: 23. 1905 (Millspaugh 1905: 23). Type. MEXICO. Yucatán, Ticul, an Hecken, E & C. Seler 3862 (holotype B?†).

Type.

BRAZIL. Mato Grosso, S. Moore 953 (holotype BM000953162).

Description.

Twining perennial herb, stems glabrous or puberulent. Leaves petiolate, 3-9 × 3-9 cm, broadly ovate, cordate with broad sinus, acuminate, glabrous or shortly adpressed pubescent; petioles 1-6 cm. Inflorescence of pedunculate axillary cymes; peduncles 0.5-8 cm; bracteoles very variable sometimes small, linear, caducous, sometimes large, expanded and leaf-like; secondary peduncles (if present), 2-6 mm; pedicels 8-21 mm; sepals slightly unequal, oblong-ovate, acute, covered in soft spines otherwise glabrous, puberulent, or, frequently, farinose, outer 12-14 × 4-5 mm, inner 14-15 × 5-6 mm, the scarious margins and upper part spineless; corolla 5.5-8 cm long, pink, glabrous outside, limb 4-5 cm, unlobed. Capsules ovoid, glabrous, 14-15 × 12 mm with stout rostrate apex 5 mm long; seeds c. 5 mm long, flattened ellipsoid, minutely tomentellous with long, dense, brownish marginal hairs.

Illustration.

O’Donell (1959b: 140). Figures 2D , 200 .

Distribution.

A species with an amphitropical distribution being found in Mexico as well as in South America, where it has a typical Chaco distribution. In South America, it is characteristic of Chaco forest and scrub.

ARGENTINA. Jujuy: Ledesma, A. Krapovickas & G. Seijo 47735 (CTES); Legname & Cuezzo 8202 (CTES, LIL). Salta: Orán, O. Morrone et al. 4045 (MO, SI).

PARAGUAY. Alto Paraguay: F. Mereles 6572 (FCQ).

BRAZIL. Mato Grosso do Sul: Corumbá región, A. Pott 7769 (CPAP, CTES); P.C. Silva & E.L.M. Assis 18 (CPAP).

BOLIVIA. Chuquisaca: Boeto, below Nuevo Mundo, J.R.I. Wood et al. 22336 (K, LPB); Zudañez, El Palmar, J. Gutiérrez et al. 2645 (HSB). Santa Cruz: Chiquitos, Valle de Tucavaca, J.R.I. Wood et al. 24462 (K, LPB, UB, USZ); Cordillera, P.N. Kaa-Iya, A. Fuentes 2992 (USZ). Tarija: Gran Chaco, Villamontes-Palos Blancos, J.R.I. Wood et al. 27606 (OXF, LPB, USZ).

NICARAGUA. Managua, S. Holt 6204 (HULE, MO).

BELIZE. Cayo, San Luis, J.D. Dwyer et al. 410 (MO).

GUATEMALA. Petén, San José, B. Wallnöfer 9502 (MO, W); ibid., Cuxú, R. Tun Ortíz 510 (BM, F, S); Santa Elena, R. Tun Ortíz 1061 (BM, F); Lake Petén Itzá, Contreras 5494 (BM, F).

MEXICO. Campeche: Hopelchén, E. Martínez et al. 31358 (BM, MEXU); Calkiní, Tunkashe, E. & H. de Cabrera 15837 (IEB). Chiapas: A. Espejo 5868 (MEXU). Guerrero: Petatlán, E. Langlassé 631 (K). Jalisco: S.H. Bullock 2000 (K). Michoacán: Apatzingán, Leavenworth 444 (MO); La Huacana, Sierra Las Cruces, V.W. Steinmann et al. 5227 (IEB); Aguila, E. Carranza & I. Silva 6658 (IEB). Quintana Roo: Chetumal, E. Cabrera & J.L. Godínez 4492 (MO); Puerto Morelos, O. Téllez & E. Cabrera 1880 (BM, MEXU). Yucatán: Sayil, E.& H. de Cabrera 10322 (MEXU, MO); Izamal, G.F. Gaumer 547 (BM, C, K, S); ibid., A. Schott 905 (BM).

Note.

The presence of soft spines on the sepals makes this species unmistakeable and only likely to be confused with the following four species. From I. echinocalyx it is distinguished by the longer peduncles, shorter sepals, less hairy leaves and pink corolla.

Figures

Figure 2. Sepals of Ipomoea species. A I. setifera B I. dumetorum C I. aristolochiifolia D I. crinicalyx E I. plummerae F I. bahiensis G I. amnicola H I. appendiculata. Photographs of A (Wood et al. 27771) B (Wood et al. 27654) D (Wood et al. 27606) and G (Wood et al. 27706) by Beth Williams C (Wood 27926) H (Wood et al. 28024) by John Wood E by Mario Giorgetta F (Queiroz et al. 15950) by Hibert Huaylla.

Figure 200. Ipomoea crinicalyx. A habit B stem C leaf D adaxial leaf surface E abaxial leaf surface F flower G corolla opened out to show stamens H ovary and style. J calyx and capsule K capsule L seeds. Drawn by Eliana Calzadilla A-E from Wood & Mamani 13495; F-J from Wood et al. 24462; J-L from Fuentes 2992.