Ipomoea longeramosa Choisy in A.P. de Candolle

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

383. Ipomoea longeramosa Choisy in A.P. de Candolle , Prodr. 9: 384. 1845. (Choisy 1845: 384)

Ipomoea geranioides Meisn. in Martius et al. , Fl. Brasil. 7: 276. 1869. (Meisner 1869: 276). Type. BRAZIL. Mato Grosso, Cuiabá, L. Riedel 945, (lectotype NY00319188, designated by Wood and Scotland 2017c: 6), isolectotype LE).

Ipomoea punctata C. Wright in Sauvalle , Anales Acad. Cien. Med. Habana 7: 44-45. 1870. (Sauvalle 1870: 44), nom. illeg., non Ipomoea punctata Pers (1805) . Type. CUBA. [Sancti Spiritus], en las sabanas del potrero Manatí, Trinidad, C. Wright 3645 [1632] (lectotype K000612812, designated by Wood and Scotland 2017c: 6, isolectotypes GH, HAC).

Ipomoea flavopurpurea Urban , Symb. Antill. 3 (2): 345. 1902. (Urban 1902-3: 345). Type. Based on I. punctata C. Wright

Ipomoea dajabonensis Alain , Anales. Acad. Cien. Rep. Dom. 3: 68. 1978. (Liogier 1978: 68). Type. DOMINICAN REPUBLIC. En manigua a la orilla de la carretera de Dajabón, A & P. Liogier 27239 (isotype B10 0242101).

Type.

BRAZIL. Minas Gerais, Morro do Lobo, Martius s.n. (holotype M0185026, isotype M0185027).

Description.

Slender herb climbing to 70 cm, possibly annual, stems thinly pilose. Leaves petiolate, 3-4 cm long, 5-lobed to near base, base broadly cuneate, segments oblong to obovate, narrowed at base, minutely retuse and mucronulate, glabrous, punctate abaxially at least when young; petioles 3-4.5 cm, pilose. Inflorescence of solitary or paired, axillary flowers; peduncles 2-5 cm, glabrous; bracteoles 2 mm, filiform; pedicels notably thicker than peduncle, 10-15 mm; sepals nearly equal or inner slightly longer, 6-11 × 2-3 mm, lanceolate or oblong, finely acuminate, mucronate, glabrous or with a few spreading trichomes and spinules near base, margin narrowly scarious; corolla 2-3 cm long, cream with lavender centre, funnel-shaped to subcampanulate, glabrous; limb 2.5 cm, obscurely lobed, midpetaline bands ending in a tooth. Capsules 7-8 mm, glabrous, subglobose, slender style shortly persistent; seeds densely shortly pilose.

Illustration.

Liogier (1994: 113) as Ipomoea dajabonensis ; Figures 141C , 186 .

Distribution.

Relatively frequent in the Caatinga region of NE Brazil; elsewhere rare and very scattered in occurrence both in other parts of Brazil, as well as in Guyana, Bolivia, Venezuela, Cuba and the Dominican Republic, and known from single records in four of these countries.

BRAZIL. Acre: Rio Branco, entre Surumu & Miriam, E. Ule 8286 (K, S). Alagoas: R.P. Lyra-Lemos 4830 (IPA). Amazonas: Rio Branco, J.G. Kuhlmann 720 (RB). Bahia: D.V. Braga et al. (IPA73962): Salvador, L.R. Noblick 1476 (HUEFS). Ceará: Serra da Ema, A. Löfgren 524 (S); Serra Apody, A. Löfgren 740 (S); J. Santino de Assis 379 (RB); Serra das Almas, F.S. Araujo 1522 (HUEFS). Mato Grosso: Type of Ipomoea geranioides . Mato Grosso do Sul: Mun. Corumbá, Lagoa do Jocadigo, A. Pott et al. 4742 (CPAP); Faz. Vale de Esperanza, A. Pott et al. 4838 (CPAP). Minas Gerais: Type of Ipomoea longeramosa . Paraíba: Regiones secas, Coêlho de Moraes 2108 (K, MO); São José dos Cadeiros, R.M.T. Costa & M.F.M. de Brito 136 (JPB); Santa Teresinha, B. Laine 16 (IPA). Pernambuco: Floresta, A.C.B. Lins e Silva 217 (PEUFR); P.N. do Catimbau, G.C. Delgado Junior 695 (RB). Rio Grande do Norte: 5 km from Currais Novas, B. Pickersgill et al. RU72-400 (K); J.L. Costa-Lima 220 (UFRN). Sergipe: A.M. Miranda and M. Grillo 4401 (UFPRE); Canindé de São Francisco, R. Simão-Bianchini 1743 (ASE).

GUYANA. R. Schomburgk (K).

BOLIVIA. Santa Cruz: Velasco, 3 km N of San Rafael, J.R.I. Wood et al. 24770 (K, LPB, USZ).

VENEZUELA. Anzoategui: E. Holt & W. Gehringer 156 (VEN) fide Austin (1982b: 168)

CUBA. [Granma]: Aeropuerto Río Cauto, Catasus 2 /95 (HAC40737). Las Tunas: Victoria, J. Acuña & Montenegro (HAJB17153). Sancti Spiritus: Trinidad, carrera de Casilda a Playa Aneón, J. Bisse et al. (HAJB34707). Villa Clara: Santa Clara, Casilda, E.L. Ekman 18876 (S).

DOMINICAN REPULIC. Type of Ipomoea dajabonensis .

Note.

An apparently easily overlooked annual herb distinguished by the palmately-lobed, abaxially punctate leaves, the yellowish corolla with a dark centre and the acuminate, mucronate sepals.

Figures

Figure 141. Photographs of Ipomoea species A I. plummerae, form with entire leaves B I. plummerae, form with lobed leaves C I. longeramosa D I. costellata E I. amnicola F I. paludicola G I. chondrosepala. A, B Mario Giorgetti C Rosemary Clegg D Firefly Forest E-G Maira Martinez.

Figure 186. Ipomoea longeramosa A habit B fruit C seed. Drawn by Rosemary Wise from B. Pickersgill et al. RU 72 - 400.