261b. Ipomoea orizabensis subsp. collina (House) J.R.I. Wood & Scotland, stat. nov

urn:lsid:ipni.org:names:

261b. Ipomoea orizabensis subsp. collina (House) J.R.I. Wood & Scotland, stat. nov

urn:lsid:ipni.org:names:

Ipomoea collina House, Bot. Gaz. 43 (6): 412. 1907. (House 1907b: 412). Type. MEXICO. Coahuila, E. Palmer 396 (holotype US471266, isotypes CAS, F, GH, K, MO, NY, UC).

Ipomoea orizabensis var. collina (House) J.A. McDonald, Lundellia 4: 87. 2001. (McDonald 2001: 87).

Ipomoea batatoides Benth., Pl. Hartw. 46. 1840. (Bentham 1839-57: 46), nom. illeg., non Ipomoea batatoides Choisy (1838) . Type. MEXICO. [Hidalgo], Mestitlán, K.T. Hartweg (K000612737).

Ipomoea mestitlanica Choisy in A.P. de Candolle, Prodr. 9: 389. 1845. (Choisy 1845: 389). Type. Based on I. batatoides Benth.

Type.

Based on Ipomoea collina House

Diagnosis. Leaves 3-7-lobed, the segments narrowly oblong in outline, narrowed at both ends.

Illustration.

Carranza (2007: 89) (includes variations in leaf shape).

Distribution.

Principally in the drier areas of northern Mexico, especially the Sonora desert.

MEXICO. Coahuila: Cuatrociénagas, Sierra de San Marcos, E. Carranza et al. 1667 (IEB); Ramos de Arizbe, Sierra de la Paila, J.A. Villarreal 3923 (IEB). Guanajuato: Jaral del Progreso, Schumann 941 (P); sine loc., Schnee s.n. (P). Hidalgo: Type of Ipomoea batatoides Benth. Sonora: Sierra de Parras, C.G. Purpus 4975 (BM, F, GH, MO). Also Chihuahua, Nuevo León, Tamaulipas and Zacatecas fide McDonald (2001: 87).