Color is perhaps a seaweed’s most striking characteristic. When held up to the light, the intensity of its magenta, the subtlety of its golden brown, or the clarity of its kelly green can take your breath away.
William Henry Harvey, a colorful Irishman who traveled the nineteenth-century world collecting specimens, became the father of modern-day phycology, that arm of botany that studies marine flora. Harvey was the first to use color as the basis for identifying seaweeds.
Pictured: Delesseria sanguinea