A mixture of triterpene methyl ethers obtained from the leaf wax of Cuban sugar cane (Saccharum officinarum L.) has been shown to consist predominantly of arundoin (fernenol methyl ether) and sawamilletin (taraxerol methyl ether), by means of preparative GLC, mass spectrometry and direct comparison with authentic specimens. Evidence for the presence, in trace amounts, of a third component having identical