Ipomoea lachnaea Spreng.

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

205. Ipomoea lachnaea Spreng. , Neue Entdeck. Planzenk. 3: 29. 1822. (Sprengel 1822: 29)

Type.

DOMINICAN REPUBLIC. C.L.G. Bertero s.n. (isotypes M, MO, MPU012116, MPU 011719).

Description.

Climbing herb, stems grey-tomentose. Leaves unequal, borne in fascicles, shortly petiolate, 2-6 × 1-2.5 cm, oblong-elliptic, acute to emarginate, base cuneate to weakly cordate, both surfaces densely appressed canescent/tomentose, abaxially silvery; petioles c. 1 cm. Flowers in subsessile axillary clusters; peduncles 0-1.5 cm; bracteoles 8-20 mm, oblanceolate, obovate to elliptic, acute, resembling diminutive leaves; pedicels 0-3 mm; sepals 10-15 mm, linear-lanceolate, acuminate, silvery pilose on both surfaces; corolla 3-3.5 cm long, subcylindrical, suburceolate, limb no wider than tube, 2-3 mm, long, toothed, purple, tomentose; stamens included.

Distribution.

Endemic to semi-dry forest in the Dominican Republic, apparently rare. DOMINICAN REPUBLIC. Loma Tibisi, A.H. Liogier 11779 (NY); La Romana. A. H. Liogier 20762 (NY); M.M. Mejía P. & T. Zanoni 9163 (NY); Azua, M.D. Fuertes L. 1891 (NY).

Note.

Distinguished by the tomentose, purple suburceolate corolla, the relatively large sepals and the tomentose leaves.