This odd green seaweed, known as Sailor’s Eyeball (Valonia ventricosa), looks like a dark green marble, and consists of a single large cell attached to the substrate by a cluster of filaments called rhizoids. Younger plants have a bluish sheen, but older ones become overgrown with incrusting coralline red seaweeds.
(via dignified-and-old)
This odd green seaweed, known as Sailor’s Eyeball (Valonia ventricosa), looks like a dark green marble, and consists of...