Ipomoea retropilosa subsp. cundinamarcana

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

265b. Ipomoea retropilosa subsp. cundinamarcana J.R.I. Wood & Scotland, Kew Bull. 72 (10): 16. 2017. (Wood and Scotland 2017b: 16)

Type.

COLOMBIA. Cundinamarca, Quebrada el Chico, al norte de Bogotá, 2700-2800 m, 30 Nov. 1952, H. Humbert, J. Idrobo & R. Jaramillo 27532 (holotype P03538230).

Diagnosis. Sepals completely glabrous. The young stems and abaxial surface of the leaves are also glabrous.

Illustration.

Figures 135J-K , 136A .

Distribution.

Cloud forest in the Eastern Cordillera of Colombia.

COLOMBIA. Boyacá: Tunja-Ramiriqui, J. Infante-Betancour s.n. (COL). Cundinamarca: type of subsp. cundinamarcana . Meta: “Villavicencio,” [1875-6], E. André 137 (K).

Note.

This species has been confused with the rather similar Ipomoea chenopodiifolia of Mexico and Guatemala but differs in the shape and size of the sepals, which are subequal, broadly ovate, never more than 9 mm long, rather than distinctly unequal, lanceolate to narrowly ovate with the inner sepals up to 13 mm long. Austin (1982b: 187) added to the confusion by distinguishing Ipomoea retropilosa on the grounds that it had a funnel-shaped corolla, although in fact it has a hypocrateriform corolla as can be easily seen on the Geneva isotype, which appears to be the only duplicate of the type with a corolla.

Figures

Figure 135. A-H Ipomoea retropilosa subsp. retropilosa. A habit B abaxial leaf surface C outer sepal D middle sepal E inner sepal F corolla opened out to show stamens G ovary, style and stigma H young fruiting calyx. J, K I. retropilosa subsp. cundinamarcana. J outer sepal K calyx with rostrate apex to capsule. Drawn by Rosemary Wise A-H from J. B. Simmons 281; J, K from Andre s. n.

Figure 136. Photographs of Ipomoea species A I. retropilosa subsp. cundinamarcana B I. lobata C I. quamoclit D I. hederifolia. A Jhon Infante-Betancourt B Alamy Ltd. C Ramona Oviedo D Amed Pupo.