Elix, JohnWardlaw, JudithArcher, Alan WObermayer, Walter2015-12-132015-12-130004-9425http://hdl.handle.net/1885/90645The depsidone 2-methoxypsoromic acid (4-formyl-3-hydroxy-2,8-dimethoxy-1,9-dimethyl-11-oxo-11-dibenzo[b,e][1,4] dioxepin-6-carboxylic acid) (9) has been identified in several lichen species. The structure of compound (9) followed from a combination of spectroscopic data.19992015-12-12