Ipomoea luteoviridis Ekman & Leonard

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

206. Ipomoea luteoviridis Ekman & Leonard , Repert. Spec. Nov. Regni Veg. 24: 11. 1927. (Urban 1927: 11)

Type.

HAITI. Massif du Nord, Gros-Morne, Morne Chabre, E.L. Ekman 5025 (S07-4662, lectotype, designated here).

Description.

Twining perennial, stems somewhat woody, hirsute. Leaves petiolate, 1.5-5 × 0.7-3.5 cm, deltoid, ovate to broadly oblong, repand, sinuate or very shallowly 3-lobed, apex retuse and sometimes apiculate, base broadly cuneate to truncate, densely stellate-hairy on both surfaces, adaxially grey-green, abaxially grey; petioles 1-3(-7) cm, hirsute. Inflorescence of dense cymes, axillary and on leafy branchlets; peduncles 0.2-1.5 cm, tomentose; bracteoles 3-4 × 1 mm; oblong to lanceolate, deciduous; pedicels 6-8 mm, grey stellate-tomentose; sepals subequal, outer 5-6 mm, suborbicular, rounded, tomentose, inner c. 6 mm, pubescent, shiny; corolla 1.2-1.7 cm long, glabrous, greenish-yellow, campanulate, limb deeply lobed with lanceolate-elliptic lobes; anthers strongly exserted, the glandular base easily visible in the corolla mouth. Capsules 7-8 × 6 mm, subglobose, glabrous; seeds 4-5 × 2 mm, pilose on the angles with long white hairs reaching c. 8 mm.

Distribution.

Endemic to the island of Hispaniola where it is frequent, often growing on serpentine deposits.

HAITI. E.L. Ekman H4559 (S), H6170 (S), H9279 (S); St Michel de L’Atalaye, E.C. Leonard 7385 (NY); Montagnes Noires, T.A. Zanoni et al. 23991 (NY).

DOMINICAN REPUBLIC. E.L. Ekman H16227 (S), 12688 (S); Santiago Rodríguez, A. H. Liogier 13243 (NY); Monseñor Noel, A. H. Liogier 17589; Cordillera Central, T.A. Zanoni et al. 25400 (NY).

Typification.

There are two sheets of Ekman H5025 at S. We have selected the sheet with open corollas as the lectotype.

Note.

Very distinct because of the stellate hairs on vegetative parts. The inflorescence has very short hairy peduncles and short pedicels so inflorescence in axillary clusters. The corolla is yellow-green, broadly campanulate and with strongly exserted anthers.