The scaly ramenta which occur in abundance on the leaf-stalk bases of fossil Cycads constitute another fern-character surviving in Mesozoic Cycadales.
Though generally nearly smooth, or but slightly scaly, the surface of some hairs is imbricated; that is to say, shows projecting scale-like processes, as in some bats, while in the twotoed sloth (Choloepus) they are longitudinally grooved or fluted.
There is also a scaly ant-eater and various species of pangolins, of arboreal habit, which live on ants.
Tongue scaly, feebly nicked in front.
arvensis, is probably a variety of the pasture mushroom; it grows in rings in woody places and under trees and hedges in meadows; it has a large scaly round cap, and the flesh quickly changes to buff or brown when cut or broken; the stem too is hollow.