Ipomoea orizabensis subsp. austromexicana

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

261c. Ipomoea orizabensis subsp. austromexicana (J.A. McDonald) J.R.I. Wood & Scotland, stat. nov

urn:lsid:ipni.org:names:

Ipomoea orizabensis var. austromexicana J.A. McDonald, Lundellia 4: 86. 2001. (McDonald 2001: 86). Type. MEXICO. Chiapas, San Andrés Larrainzar, Summit of Chuchil Ton, D.E. Breedlove 29283 (holotype MEXU00252964).

Type.

Based on Ipomoea orizabensis var. austromexicana J.A. McDonald

Diagnosis. Distinguished by the glabrous leaves and sepals, which are relatively short (<8 mm long), broadly elliptic to deltoid, the scarious margins very narrow.

Distribution.

Extreme western Guatemala to the Mayan highlands of central Chiapas, growing mostly between 1500 and 2000 m.

GUATEMALA. Sacatepequez, P.C. Standley 64686 (F).

MEXICO. Chiapas: Pinabeto, E. Matuda 15477 (F); La Independencia, D. E. Breedlove 33479 (MEXU).