Ipomoea coccinea

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

327. Ipomoea coccinea L., Sp. Pl. 1: 160. 1753. (Linnaeus 1753: 160)

Quamoclit coccinea (L.) Moench, Methodus 493. 1794. (Moench 1794: 493).

Convolvulus coccineus (L.) Salisb., Prodr. Stirp. Chap. Allerton 126. 1796. (Salisbury 1796: 126).

Neorthosis coccinea (L.) Raf., Fl. Tellur. 4: 75. 1836 [pub. 1838]. (Rafinesque 1838a: 75).

Mina coccinea (L.) Bello, Apuntes fl. Puerto Rico 1: 294. 1881. (Bello y Espinosa 1881: 294).

Convolvulus coccineus var. typicus Kuntze , Rev. Gen. 3 (2): 213. 1898. (Kuntze 1898: 213), nom. illeg., superfl.

Type.

Herb. Linn. No. 219.3 (LINN), designated by Wijnands (1983: 88).

Description.

Annual herb, stems glabrous except on nodes. Leaves petiolate, entire, 5-8 × 3-5.5 cm, ovate to coarsely dentate, acute and mucronate, cordate, usually sagittate with dentate auricles, glabrous except on the veins beneath; petioles 2.5-5.5 cm. Inflorescence of lax, few-flowered cymes; peduncles 1-13 cm; bracteoles 1-3 mm, broadly lanceolate; pedicels 5-15 mm, eventually becoming reflexed in fruit; sepals unequal, outer 3 mm, oblong to elliptic, rounded to obtuse, smooth, the mucro 2-6 mm, the inner c. 5 mm long, oblong, the mucro 2-5 mm; corolla tube 2-2.5 cm long, lobes 0.5-1 cm, virtually undivided, red or red or variegated with yellow, glabrous, stamens exserted. Capsules broadly ovate, muticous or shortly rostrate, c. 7 mm, glabrous; seeds uniformly tomentose.

Distribution.

Endemic to southeastern USA, where it grows on waste ground, roadsides, stream sides and in ditches, apparently with a preference for seasonally moist habitats.

UNITED STATES. Arkansas: V. Board s.n. [2/8/1967] (UARK). Florida: Buckley s.n. (K). Georgia: C. Dorby 110 (GA). Illinois: G.H. French 2154 (K). Kansas: W.H. Horr & R.L. McGregor E424 (S). Kentucky: R. Peter s.n. (K); D.R. & B.K. Windler 2836 (VSC). Louisiana: Drummond s.n. (K). Maryland & Dist. Col.: L.C. Wheeler 5148 (BM, RSA). Missouri: Mackenzie 1055 (S). New Jersey: W.M. Benner 9773 (LSU). North Carolina: Sandy Creek, N of Gillburg, H.E. Ahles & R. Leisner 20404 (UNC, BM); Rügel 436 (BM); R.K. Brummitt 21959 (E, K). South Carolina: G. Newberry 16055 (UCSC). Tennessee: A. Armstrong 594 (KHD). Texas: C. Wright 511 (K). Virginia: G.W. Ramsey 493 (BM); E.K. Balls 7704 (BM, US). West Virginia: E.L. Morris 1209 (K).

Notes.

The name Ipomoea coccinea is still commonly but erroneously used for many different species in this clade.

Some specimens from outside the eastern United States may be correctly named Ipomoea coccinea , for example Martínez 31473 (BM) from Campeche, Mexico. These merit further investigation.

• Species 328-334 form another well-defined small clade characterised by their palmately (sometimes pedately) lobed leaves and mucronate sepals. Most species are annuals. It is centred on Mexico and, following House (1908b) can be referred to as the Pedatisecta Clade