Ipomoea racemosa Poir.

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

354. Ipomoea racemosa Poir. , Encycl. [J. Lamarck et al.], Suppl. 4: 633. 1816. (Poiret 1814-17: 633)

Convolvulus racemosus (Poir.) Spreng. , Syst. Veg. 1: 600. 1825 [pub. 1824]. (Sprengel 1824: 600).

Exogonium racemosum (Poir.) Choisy , Mém. Soc. Phys. Genève 8: 50 [128]. 1838. (Choisy 1838: 50 [128]).

Rivea racemosa (Poir.) Hallier f., Bot. Jahrb. Syst. 18: 158. 1894 [pub. 1893]. (Hallier 1893b: 158).

Quamoclit racemosa (Poir.) Roberty , Candollea 14: 41. 1952. (Roberty 1952: 41).

Turbina racemosa (Poir.) D. Austin , Ann. Missouri Bot. Gard. 64: 331. 1977 [pub. 1978]. (Austin 1978a: 331).

Ipomoea bracteata Rudolphi ex Ledeb., Neues J. Bot. 2: 292. 1807. (Ledebour 1807: 292), nom. illeg., non Ipomoea bracteata Cav. (1799) . Type. "Santo Domingo", Rudolphi s.n. (not found at MW, whereabouts unknown).

Pharbitis bracteata Choisy in A.P. de Candolle , Prodr. 9: 344. 1845. (Choisy 1845: 344). Type. Based on Ipomoea bracteata Rudolph ex Ledeb.

Ipomoea rudolphii Roem. & Schult. , Syst. Veg. 4: 222. 1819. (Roemer and Schultes 1819: 222). Type. Based on Ipomoea bracteata Rudolph ex Ledeb.

Exogonium rudolphii (Roem. & Schult.) House , Bull. Torrey Bot. Club 35: 99. 1908. (House 1908a: 99).

Turbina rudolphii (Roem. & Schult.) O'Donell , Lilloa 30: 64. 1960. ( O’Donell 1960: 64).

Convolvulus altissimus Spreng. , Syst. Veg. 1: 613. 1825 [pub. 1824]. (Sprengel 1824: 613). Type. "Santo Domingo", C.L.G. Bertero s.n. (Probable holotype P00391959, isotypes MO, MPU).

Ipomoea altissima (Spreng.) G. Don , Gen. Hist. 4: 273. 1838. (Don 1838: 264).

Exogonium wrightii House , Bull. Torrey Bot. Club 35: 99. 1908. (House 1908a: 99). Type. CUBA. C. Wright 1650 (holotype GH00054449, isotypes BR, G, MO, P).

Ipomoea wrightii (House) Alain, Mem. Soc. Cub. Hist. Nat. "Felipe Poey" 22: 123. 1955. (Liogier 1955: 122), nom. illeg., non Ipomoea wrightii A. Gray

Type.

[HAITI], "Sainte Dominique", Riedlé s.n. (? F-Webb, fragment P00391958).

Description.

Liana, stems woody below, bark very pale, appressed sericeous when young. Leaves petiolate, 1-5 × 2-3.2 cm, ovate or oblong-ovate, obtuse, cordate, adaxially subglabrous to pilose, abaxially paler, pilose or sericeous; petioles 1.5-3.2 cm, pubescent. Inflorescence of axillary or terminal pedunculate cymes; peduncles 6-20 cm; bracteoles 1.5-4 cm, linear-lanceolate to oblong elliptic, coloured reddish to mauve, sericeous when young; pedicels 5-40 mm; sepals subequal, resembling the bracteoles, 18-25 × 7 mm, ovate to lanceolate, obtuse to acuminate, mucronulate, sericeous, glabrescent; corolla 3.5-5 cm long, salverform, limb 4 cm wide, red, purple or lavender, pubescent, stamens exserted, reddish. Capsules ovoid, apiculate; seeds usually 1, shortly pilose.

Illustration.

Figure 4A .

Distribution.

Endemic to the islands of Cuba and Hispaniola, growing in disturbed scrubby forest.

CUBA. C. Wright 3096 (BM, NY, P); J. Bisse et al. (HAJB 21185); L. Boise & H. Lipold (HAJB20975). Holguín: Sabanaso, E.L. Ekman 6570 (BM, NY, S). Villa Clara: A. Luna 800 (NY).

HAITI. Massif des Matheux, E.L.Ekman H9168 (NY, S); La Brande to Mt. Balance, G.V. Nash & N. Taylor 1696 (NY).

DOMINICAN REPUBLIC. Valle de San Juan, E.L. Ekman H13530 (S); ibid., R.A. & E.S. Howard 8863 (BM, S); ibid., A. Liogier 12452 (NY); Baorhuco, H. von Türckheim 3598 (BM, NY); ibid., M. Mejía et al. 1062 (NY); Azua, M. Mejia 8327 (MO, NY); M. Fuertes 1883 (P).

Note.

The placement of this species is uncertain as we have been unable to sequence any example successfully. It is one of two Caribbean endemics that do not belong to Clade A2, the other being Ipomoea jamaicensis .

Figures

Figure 4. Sepals of Ipomoea species. A I. racemosa B I. rosea C I. alba D I. hirsutissima E I. barbatisepala F I. ampullacea G I. gigantea H I. longeramosa. Photographs of A (R. A. & E. S. Howard 8863) E (Gonzalez Ortega 874) and F (Lott & Wendt 2192) by John Wood; B (Harley et al. 54830); C (Fendler 589) and H (Pickersgill et al. RU 72 - 400) by John Baker; D (Mendoza 4365) and G (Mendoza 4645) by Moises Mendoza.