On Mar 18, 9:37 am, wrote:
hmm. do they come off? are they stuck on or part of the leaf? are
they hard shell scale or just ookiness from hard water? also, are they
stray potting bits that have gotten stuck on? i occaisionally am
given a heart attack by a stray piece of sphag that has lodged
somewhere and i think "eek! scale!" then i poke it and realize it's
sphag.

have you tried wiping yours off? water first, then rubbing alcohol.
see if it makes them run away.

--j_a

I could get most of them off but they were really stuck on there.
There was an indentation left from those that came off. I also
thought it might be potting medium, but I don't think it would get
that hard, would it?? I do sometimes spray the medium because the
bark chips just allow all the water to go right through. I use a mix
of chips and moss. I never get water on the leaves.

Good news is the plants are looking fine. Growing new spikes and
leaves.