266a. Ipomoea chenopodiifolia subsp. chenopodiifolia

Diagnosis. Corolla tube gradually narrowed upwards, the anthers and style weakly exserted from the corolla mouth. This is the type subspecies which is somewhat intermediate between the other two subspecies.

Illustration.

Figure 137A.

Distribution.

Hill forest between 1750 and 1900 m. Endemic to Oaxaca State in Mexico.

MEXICO. Oaxaca: Miahuatlan, T. Croat 46030 (MO); ibid., San J. Coatlan, A. Campos 3421 (MEXU); Mun. Santiago Textitlán, Paraje Río Aguacate, I. Trujillo 1131 (MEXU); ibid., I. Trujillo 1132 (IEB, MEXU); ibid., Paraje arriba de Río Tronco Rambo, I. Trujillo 847 (MEXU); Sola de Vega, M.E. Jacob Salinas 320 (MEXU).