The antimicrobial activity of methanol extracts three thalloid liverworts, Marchantia polymorpha, Conocephalum conicum and Pellia endiviifolia bis-bibenzyl marchantin A, the most dominant compound in extract M. have been investigated this research. 1H-NMR spectroscopy revealed that polymorpha P. liverwort contain terpenes, oils, sugars bis-bibenzyls, while these specific macrocyclic compounds w...