Ipomoea sagittata 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

351. Ipomoea sagittata Poir. , Voy. Barbarie 2: 122. 1789. (Poiret 1789: 122)

Convolvulus speciosus Walter , Fl. Carol. 93. 1788, (Walter 1788: 93), nom. illeg., non Convolvulus speciosus L.f. (1782). Type. UNITED STATES, not specified.

Convolvulus sagittifolius Michx., Fl. Bor.-Amer. 1: 138. 1803. Type. Based on Convolvulus speciosus Walter

Ipomoea sagittifolia (Michx.) Ker-Gawl. , Bot. Reg. 6: t. 437. 1820. (Ker-Gawler 1820: t.437). Type. Based on Convolvulus speciosus Walter

Convolvulus wheleri Vahl , Symb. Bot. 2: 36. 1791. (Vahl 1791: 36). Type. SPAIN. Valencia, La Albufera, Barnades s.n. (lectotype C10009688, designated by Austin & McDonald 2014 (44): 1).

Type.

ALGERIA. Souk, Desfontaines s.n. (holotype P00680360).

Description.

Glabrous, perennial trailing or twining herb, stems slender. Leaves petiolate, deltoid-sagittate, the central lobe lanceolate, acuminate to a mucronate point, 2-6.5 × 0.2-1.5 cm (excluding auricles), the two auricles similar in shape but slightly shorter than the main part of blade, narrowly oblanceolate, acute, apex finely acuminate; petioles 1-4.2 cm. Inflorescence of solitary (very rarely paired), axillary flowers; peduncles 5-12(-26) mm; bracteoles 1-2 mm, ovate, acute, caducous; pedicels 13-16(-20) mm, thickened upwards; sepals unequal, outer 7-8 × 3-5 mm, oblong-elliptic, rounded, mucronate, margins narrow, scarious, inner 9-12 × 5-7 mm, oblong-elliptic, rounded, mucronulate, subscarious; corolla 4-7 cm long, funnel-shaped, pink, glabrous, limb 4.5-6 cm diam., entire. Capsules and seeds not seen.

Illustration.

McDonald (1994: 41); Figures 161A , 168 .

Distribution.

Salt marsh and coastal grasslands. Coastal USA, from North Carolina south to Florida and along the Gulf coast to Mexico and thence south to Belize and Guatemala; also on Jamaica, Cuba, Bahamas and Bermuda: apparently absent from the Caribbean proper. It also occurs rarely inland, by saline lakes and streams as in Coahuila. It is apparently native or an ancient introduction on coasts in the Old World around the Mediterranean Sea.

BELIZE. C. Whitefoord 2541 (BM); G.R. Proctor 35786 (MO); J.A. Ratter et al. 6569 (K).

GUATEMALA. J. Steyermark 51539 (F).

MEXICO. Campeche: G. Carnevali 5851 (ARIZ). Chiapas: E. Matuda 3253 (MEXU). Coahuila: F. Shreve 8488 (ARIZ). Quintana Roo: E.F. & H. Cabrera 13939 (MEXU). San Luis de Potosí: C.A. Purpus 5446 (BM, MO). Tabasco: A. Novello & A. Guerra 4429 (MO). Veracruz: fide McDonald (1994). Yucatán: D.F. Austin 5025 (FTG).

UNITED STATES. Alabama: Deramus D149 (IBE). Florida: Jacksonville, A.H. Curtiss 2167 (BM, K), 5047 (K); St. Mark’s, Rugel s.n. [1843] (BM, K, OXF, S); 12 miles N of Naples, W.J. Dress & R. Moran 2492 (BM); T.G. Lammers 5884 (MA). Georgia: St Catharine’s Island, S.B. Jones et al. 24506 (BM); R. Thorne & R. Norris 6258 (GA). Louisiana: New Orleans, Drummond 1832 (K). Mississippi: A.B. Seymour 103 (S); J. Wooten s.n. (USMS). North Carolina: Stevenson & Bradley 3318 (E); Roanoke Island, P.O. Schallert 22877 (FTU). South Carolina: J. Nelson 28758 (USCH). Texas: Lindheimer Fasc.1 128 (BM, K, OXF); Aransas, P. Fryxell 5138 (IEB).

BERMUDA. S. Brown & N.L. Britton 299 (BM, K); F.S. Collins 253 (BM, K).

BAHAMAS. N.L. Britton & L.J.K. Brace 393 (K, MO).

CUBA. C. Wright 3087 (HAC, K, MO); Bro. León 14162 (HAJB); J. Bisse et al. (HAJB34960); E.L. Ekman 895 (S), 18326 (S).

JAMAICA. G.R. Proctor 37176 (MO); R.A. Howard & G.R. Proctor 14529 (BM).

Note.

Distinguished by the strongly sagittate leaves, the auricles nearly equalling the blade, the oblong-elliptic unequal sepals and solitary flowers.

Figures

Figure 161. Photographs of Ipomoea species. A I. sagittata B I. fimbriosepala C I. imperati D I. pes-caprae. A Alamy Ltd. B John Wood C Alamy Ltd. D http: // plantworld 2. blogspot. com.

Figure 168. Ipomoea sagittata. A leaves and stem B habit with flower C outer sepal D inner sepal. Drawn by Rosemary Wise from Curtiss 5047.