From Bartramia ithyphylla the following five biflavonoids were isolated: philonotisflavone, 2,3-dihydrophilonotisflavone, dicranolomin, 5',3'''-dihydroxyamentoflavone and 5'-hydroxyamentoflavone.
Keywords: Bartramia ithyphylla Brid.; Bartramiaceae; Biflavonoids.
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