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Marine Animal Encyclopedia

Limey Petticoat Padina gymnospora

Padina is the only genus of brown seaweeds to have calcified fronds, hence this species’ common name of limey petticoat. The reflective chalk shows as bright white concentric bands on the upper surface of the fan-shaped fronds. The fronds are only 4–9 cells thick and curled inward. Older fronds may become split into wedge-shaped sections. This species is widespread in tropical seas, often growing in masses on shallow subtidal rocks, and on old coral and shells.

Limey Petticoat habitat mapzoom image
  • Kingdom Phaeophyta
  • Height Up to 4 in (10 cm)
  • Habitat Rock pools and shallow subtidal rocks
  • Water_temperature 68–86°F (20–30°C)
  • Distribution Coasts in tropical and subtropical areas worldwide