Wrinkled Parmelia LichenThe Wrinkled Parmelia, Parmelia caperata, (L.) Ach.
Habit and habitat.-Grows on trees and rocks to form light pea-green, wrinkled and wavy mats.
Vegetative organs (thallus). - Leaf-like, appressed, horizontal, cartilaginous; lobes usually broad and rounded with entire margins; the upper surface usually covered with a very light green powder (soredia) ; the under surface, black with a reddish-brown margin and scattered thread-like bodies (fibrils).
Fruiting organs (apothecia). - Cup-shaped, with wavy
margins often grainy (sorediferous).
Name.-The specific name caperata, the Latin for "wrinkled," describes the habit of growth.