Ipomoea seaania Felger & D.F. Austin

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

123. Ipomoea seaania Felger & D.F. Austin , Sida 21: 1296. 2005. (Felger and Austin 2005: 1296)

Type.

MEXICO. Sonora, Mun. Guaymas, 1 km N. of Bahía San Carlos, R. Felger & R.S. Devine 85-301 (holotype ARIZ-BOT0005024, isotypes ARIZ, CAS, IEB, MEXU, MO, NY, RSA, SD, TEX, US).

Description.

Multi-stemmed shrub to 4 m, stems erect, or, upwards, sinuous or spiralling, pubescent, glabrescent, old bark whitish. Leaves shortly petiolate, 1.5-8 × 0.5-2 cm, lanceolate to ovate, apex obtuse to emarginate, base cuneate to truncate, both surfaces glabrous; petioles 2-12 mm. Inflorescence of 1-3 flowers on short shoot-like peduncles 0-5 mm long; bracteoles 5-8 mm, oblong-lanceolate, resembling tiny leaves, caducous; pedicels 8-22 mm, glabrous; sepals slightly unequal, 12-17 × 6-8 mm, abaxially thinly to densely puberulous, adaxially densely puberulous, margins scarious, outer sepals ovate, acute, inner broadly ovate to elliptic, obtuse with broad glabrous, scarious margins; corolla 4-6 cm long, narrowly funnel-shaped with tube 3.5 cm long and c. 1.5 cm wide at mouth, glabrous, white with yellowish midpetaline bands, maroon inside at base of tube, limb c. 6 cm diam. Capsules and seeds unknown.

Illustration.

Felger and Austin (2005: 1297).

Distribution.

Lower slopes of Sierra El Aguaje in desert scrub on rocky slopes near sea level in NW Mexico.

MEXICO. Sonora: San Carlos Bay-Catch-22 airstrip, T.F. Daniel 2360 (ASU, CAS).

Note.

The holotype was cited as deposited in UA, a non-existent herbarium code. It was apparently intended to refer to the University of Arizona (ARIZ).