Two new acridone alkaloids, 1-hydroxy-3,4-dimethoxy-10-methylacridan-9-one (11) and 1-hydroxy-3-geranyloxy-4-methoxy-10-methylacridan-9-one (12), have been isolated from Sarcomelicope leiocarpa wood and bark. Their structures have been elucidated by spectral analysis and confirmed by chemical correlation for compound 11, and by X-ray diffraction analysis for compound 12. In addition, eight other acridones (3–10) and two furo[2,3b] quinolines (1, 2) have been isolated from the leaves, wood, and bark of the same species. © 1985, American Chemical Society. All rights reserved.