Brown algae
The largest algae belong to the phylum Phaeophyta, also known as brown algae. Brown algae include seaweeds such as kelp, which can grow to be quite large in size.
Among the brown algae are the largest of all algae, the giant kelps, which may reach a length of over 100 ft (30 m).
The plural of alga is algae. The plural possessive is algae's.
Kelp.
The largest brown algae is the giant kelp (Macrocystis pyrifera), which can grow up to 150 feet in length. It forms dense underwater forests in cold, nutrient-rich waters along the coastlines of the Pacific Ocean.
Tiny, but when a lot bunch up together it forms a big blanket of algae.
Algae is the largest producer of oxygen
Until recently, Cyclospora was considered to be a form of algae
they form lichens
brown algae
Plants and algae
The plural for algae is actually just algae