The pileus is soft, somewhat coriaceous, incrusting, ferruginous-brown.
If lateral growth predominates, broad, low, and incrusting shapes result.
They are broadly divided into two groups, namely, the erect and the incrusting forms.
The colonies thus formed are flat and incrusting, or are branched and lobed, or sometimes elevated on stalks.
In the original book: almost obliterated ...