FLAVONOIDS OF UMBELLULARIA-CALIFORNICA

The vacuolar flavonoid profile of Umbellularia californica consists of 3-O-mono-, di- and triglycosides of kaempferol, quercetin and isorham netin together with eriodictyol 7-O-glucoside. The leaf exudate contai ned no flavonoids but did exhibit a small amount of scopoletin. The tw o growth forms of this species, a shrubby form from dry habitats and a coastal forest tree, exhibited identical flavonoid profiles. These ob servations were taken to indicate that the flavonoid profile of this s pecies became established before the two growth forms differentiated. The flavonol profile of Umbellularia is consistent with profiles repor ted for other members of the Lauraceae.