Tropicals & Tender Perennials: A mystery gift, 1 by Gitagal

Gitagal wrote:
These calloused areas are dry and solid. No rot.

Here are a couple more pictures. Any diagnosis will be appreciated.
As I said--it is mostly cosmetic--does not seem to be affecting the plant.

#1--is the tops of the longer fronds
#2--is near the top of the pot.
#3--Will try for 3! This is #2 Epis beautiful bloom later in the day when it was getting dark.

My Epis hang in my back yard and get some direct sun as the sun passes between my 2 big trees.
Then it gets dappled sun.
There plants are now 7 years old from 2 leaf cuttings I received from Kachinagirl in CA in 2005.

Thanks again---Gita