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The present work aimed at a comprehensive chemical characterization of the cuticular wax mixtures covering leaves of the monocot species Aloe arborescens. The wax mixtures were found to contain typical aliphatic compound classes in characteristic chain length distributions, including alkanes (predominantly C₃₁), primary alcohols (predominantly C₂₈), aldehydes (predominantly C₃₂), fatty acid methyl esters (predominantly C₂₈) and fatty acids (bimodal distribution around C₃₂ and C₂₈). Alkyl esters ranging from C₄₂ to C₅₂ were identified, and found to mainly contain C₂₈ alcohol linked to C₁₆–C₂₀ acids. Three other homologous series were identified as 3-hydroxy fatty acids (predominantly C₂₈), their methyl esters (predominantly C₂₈), and 2-alkanols (predominantly C₃₁). Based on structural similarities and homolog distributions, the biosynthetic pathways leading to these novel wax constituents can be …