I suggest you contact Dr. John T. Mickel at the
New York Botanical Gardens. In his book, HOW TO KNOW THE FERNS
AND FERN ALLIES, he gives a brief description and a small distribution
map for S. lepidophylla. I am almost positive he could tell whatever
you want to know about the plant.
Good Luck.................Kerry D. Heafner
Appalachian St. University.