Ipomoea killipiana O'Donell

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

95. Ipomoea killipiana O'Donell , Lilloa 23: 486. 1950. ( O’Donell 1950b: 486)

Type.

COLOMBIA. Meta, Villavicencio, road to Restrepo, H. Schieffer 833 (holotype US00111409; isotypes GH, LIL, UC).

Description.

Twining perennial, the stems glabrous except some pubescence at the nodes. Leaves petiolate, 3-10 × 2.5-11 cm, deeply 5-7-partite, segments oblong, 6-11 mm wide, acuminate and mucronate, scarcely narrowed at base, base shallowly and broadly cordate, adaxially thinly but shortly hispid-pilose, abaxially paler, nerves prominent puberulent; petioles 1.5-3.8 cm, thinly pubescent at base and apex, the abaxial surface pubescent on the veins. Inflorescence of few-flowered, axillary cymes, peduncles 3-3.5 cm, pubescent; bracteoles oblong, 12-15 × 3-4 mm, papery, caducous; secondary peduncles c. 2.5 cm long; pedicels 6-11 mm, pubescent; sepals somewhat unequal, papery, glabrous, the margins narrow and scarious, outer 16-18 × 7-8 mm, oblong-elliptic, subacute, mucronate, inner oblong, 4-5 mm wide; corolla 6 cm long, purple, glabrous, funnel-shaped, limb c. 4 cm diam., entire. Capsules and seeds not seen.

Illustration.

Figure 61 .

Distribution.

On cliffs at low altitudes, apparently rare.

COLOMBIA. Meta: P.N. Sierra de la Macarena, R. Callejas 6484 (MO).

VENEZUELA. Barinas: carretera a Pedraza, L. Aristeguieta 7993 (MO), fide Austin.

Notes.

This species is distinguished by the large foliaceous sepals. Its placement here is uncertain.

There is also a record from French Guiana (Funk et al. 2007: 272) but we have not traced a specimen and its presence there or elsewhere in the Guianas is unconfirmed.

D. Cardénas et al. 6498 (COAH, MO) from Serranía La Lindosa, Guaviare, appears to be Ipomoea killipiana but all parts are much smaller than in the type described above and the whole appears much more slender; the largest leaves are only 3.7 cm long and the outer sepals 12 × 4 mm. With so little material available it is difficult to be certain which form is most characteristic, if indeed they both belong to the same species.

Figures

Figure 61. Ipomoea killipiana. A habit B outer sepal C middle sepal D inner sepal. Drawn by Rosemary Wise from Schieffer 833.