On the Constituents of Leaves of Cornus kousa $B_{UERGERI}$

산딸나무 Cornus kousa $B_{UERGERI}$ 잎의 성분

Pale yellow microneedles$(m.p.\;228{\sim}230^{\cric})$ and colorless microneedles$(m.p.\;235{\sim}237^{\circ})$ were respectively obtained from the leaves of Cornus kousa $B_{UERGERI}$. These two substances were as iso-quercitrin and gallic acid by paper partition and thin-layer chromatographies and physicochemical tests.