Abstract
A wide range of Camellia species and hybrids have been surveyed for the presence of the eugenol glycoside, sasanquin, and two fluorescent flavonoid sulfates of unknown structure designated here, for convenience, camellin I and camellin II. Sasanquin is restricted to C. sasanqua Thunberg, C. hiemalis Nakai, C.verlealis (Makino) Makino, their hybrids and a very small number of C.japoleica L. cultivars. The camellins are found in all accessions of C. japonica L., C. Iutchuensis T. Ito, C.tralesleohoensis Hayata, most accessions of C. sasalequaThunberg and most hybrids involving these species. Cork-wart variation in some progenies of C.sasanqua Thunberg and C. hiemalis Nakai is also included. The evidence presented here supports the idea that occasional events of hy-bridization between C.japoleica L. and C.sasanqua Thunberg have produced hybrids that backcross to C.sasalequa Thunberg and have introgressed the cultivated forms of C. sasanqua Thunberg.
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