Kuhry (1988): Stem and / or leaf remains. Parallel venation. Epidermis with costal and intercostal zones. Epidermal cells arranged in longitudinal rows parallel to the long axis of the stem and / or leaf. Intercostal cells with sinuous walls.
Kuhry P (1988) A palaeobotanical and palynological study of Holocene peat from the El Bosque mire. Located in a volcanic area of the Cordillera central of Colombia. Rev. Palaeobot. Palynol. 55:19-72.