Noun
algae having the chlorophyll masked by brown and yellow pigments
Source: WordNetAlgae In some multicellular green algae ( Ulva lactuca is one example), red algae and brown algae sporophytes and gametophytes may be externally indistinguishable (isomorphic). Source: Internet
Harvey's four divisions are: red algae (Rhodospermae), brown algae (Melanospermae), green algae (Chlorospermae) and Diatomaceae. citation Harvey, D. (1836). Source: Internet
However, complex multicellular organisms evolved only in six eukaryotic groups: animals, fungi, brown algae, red algae, green algae, and plants. Source: Internet