Kuhry (1988): Plants branching in fascicles. Cortical cells of stem and branches fibrillose. Leaves broadly ovate, deeply concave, hood-shaped, ecostate. Leaves with a regular pattern of alternating green and hyaline cells reinforced with spiral fibres. Green cells completely enclosed on both surfaces of leaf.
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.