Lichenic
Li`chen´ic
(lî`kĕn´ĭk) a. 1. Of, pertaining to, or obtained from, lichens.
Lichenic acid
a - An organic acid, C14H24O3, obtained from Iceland moss.
b - An old name of fumaric acid.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.