L. Frank Baum,
Dorothy and the Wizard in Oz — Chapter 4…
(1908)
“ This sight explained to Dorothy why she had seen no children among the Mangaboos, a thing she had until now been unable to account for."Our people do not acquire their real life until they leave their bushes," said the Prince. "You will notice they are all attached to the plants by the soles of their feet, and when they are quite ripe they are easily separated from the stems and at once attain the powers of motion and speech. So while they grow they cannot be said to really live, and they must be picked before they can become good citizens." ”
