QUINONES AND RELATED-COMPOUNDS IN HIGHER-PLANTS .11. ROLE OF 2-CARBOXY-2,3-DIHYDRO-1,4-NAPHTHOQUINONE AND 2-CARBOXY-2-(3-METHYL-BUT-2-ENYL)-2,3-DIHYDRO-1,4-NAPHTHOQUINONE IN THE BIOSYNTHESIS OF NAPHTHOQUINONE CONGENERS OF CATALPA-OVATA CALLUS TISSUES