Lycophlegmariols A-D: Cytotoxic serratene triterpenoids from the club moss Lycopodium phlegmaria L.

► Lycopodium serratene triterpenes, lycophlegmariols A-D, were isolated from Lycopodium phlegmaria L. ► This is the first report of an abietane diterpene, margocilin, isolated from Lycopodiaceae. ► The isolates showed anticancer activity, lymphoblastic leukemia (T-lymphoblast).