acropetally

/ˌækroʊˈpɛtəli/
adverb
  1. In a direction from the base toward the tip or apex (used especially in botany).
    • In this plant, flowers bloom acropetally, starting from the bottom and moving upward.
    • The leaves develop acropetally, with the youngest leaves at the top of the stem.
    • The fungus spreads acropetally along the shoot, infecting new growth first.
Antonyms
What does "acropetally" mean? | whatsthatwordmean | whatsthatwordmean