Ipomoea sp. A aff. theodori

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

14. Ipomoea sp. A aff. theodori

Remarks.

Erect perennial undershrub from a xylopodium; stems several, below woody, glabrescent, above, herbaceous, thinlysoftly pilose. Leaves shortly petiolate, mostly 3-lobed almost to base but a few lower leaves entire, base cuneate, segments 4-13 × 0.2-0.6, linear-oblong, obtuse to acute, shortly mucronate, both surfaces thinly pilose to subglabrous; petioles 2-10 mm. Inflorescence of solitary pedunculate axillary flowers; peduncles 2.5-10 cm; bracteoles caducous, not seen; pedicels 10-15 mm, slightly thickened upwards; sepals subequal to unequal, outer 8-15 × 5-6, ovate, obtuse, mucronate, thinly pubescent to subglabrous, inner larger, 11-16 mm, ovate to elliptic, mucronate, more densely pubescent but with broad, glabrous margins; corolla 6-8 cm long, pink, pubescent, funnel-shaped, limb 4-6.5 cm diam., undulate. Capsules and seeds not seen.

Distribution.

Endemic to Caaguazú in Paraguay and recorded as growing in cerrado.

PARAGUAY. Caaguazú: Río Yhú, E. Hassler 9689 (BM, K), 9689a (BM, K), 9689b (NY); Vic. Caaguazú, E. Hassler 9229 (BM, K, NY); Colonia Pindo, camino entre Itakyry y Curuguaty, A. Schinini & G. Caballero Mamori 30164 (CTES, K).

Note.

This plant comes from the same region as Ipomoea theodori and may eventually prove to be only a form of it. It differs in the somewhat broader leaflets and the distinctly shorter calyx, although the calyx is still longer than other species in this group.