Iris Cohen schreef in
I had to admit to Scott that I'm even worse than he thought. Whenever I
meet a new kind of tree, my first reaction is, is it good for bonsai? It's
incurable. I keep wondering about Ptericeltis, with that peeling bark.

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I am surprised you find anything for Ptericeltis, but Pteroceltis ("ptero-"
indicating "winged") gives plenty of hits. Apparently it is the source for
Xuan paper (commonly called "rice paper"), a high quality paper that is the
preferred paper for calligraphy.
PvR