A petal, also called inner tepal[?], is a floral piece, unit of the corolla[?], usually showy and colored. Petals can be of different shapes (cuneate...).
... Vespucci, (1454-1512), discovered other parts of America and gave his name to the new continent
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Jean-Frédéric Waldeck, (1766-1875), French antiquarian, artist, ...