From the stem of Cedrela odorata grafted on Toona cil&ta var. austral& were isolated calamenene, cycloeucalenol, sitosterol, stigmasterol, campesterol, gedunin, 7-deacetylgedunin, 7-deacetoxy-7-oxogedunin, methylangolensate, febrifugin, azadiradione, 20,21,22,23-tetrahydro-23-oxoazadirone, 3fl-deacetylfissinolide and, catechin, together with the new limonoid 1 a-methoxy-1,2-dihydrogedunin and the new cycloartane 3fl-Ofl-D-glucopyranosylcycloeucalenol. The limonoids were of little value to clarify the basis of the induced resistance in the graft against Hypsipyla grandella. The cycloartanes and catechin could have been translocated from Toona stock to the Cedrela graft.