Abstract Two new bis(bibenzyl) ethers, perrottetin E-11′-methyl ether and 14-hydroxyperrottetin E-11′-methyl ether were isolated from an ethyl acetate extract of the liverwort Pelliaendiviifolia together with the previously known bis(bibenzyl) ether, perrottetin E and their structures characterized by spectroscopic methods, chemical evidence and total synthesis. The present results strongly support