As the stem elongates and the pileus enlarges and expands, the volva is torn into areolate patches.
"Studies of American Fungi. Mushrooms, Edible, Poisonous, etc."
George Francis Atkinson
Skin of dorsal surfaces of head, body, and limbs faintly areolate; skin of chin, belly, and ventral surfaces of thighs granular, that of ventral surfaces of limbs, except thighs, areolate; thoracic fold absent.
"A Review of the Frogs of the Hyla bistincta Group"
William E. Duellman
The skin on the flanks of both sexes of buckleyi is weakly areolate; in the other species the flanks are smooth.
"A Synopsis of Neotropical Hylid Frogs, Genus Osteocephalus"
Linda Trueb William E. Duellman