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Abstract
The morphological characteristic and the cytological studies made on the genus Stevia are described. Take into aécount that the chemistry of the genus might be useful for a more precise delimitation of their species; to establish relationships between chemistry, morphology and chromosomic number and to establish relationships with other genera of the tribe, the review of the isolated compounds from 54 species and 8 varieties already studied up 1997 is made.
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References
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