Green Algae
Brown Algae
Did You Know?
Red Algae
100

Brilliant white when bleached in sun.

What is cactus algae?

100

Turns dark brown on beach.

What is pelagic sargassum?

100

Have bitter chemicals that discourage grazing by fish

What is iridescent-banded algae?

100

Where branching coralline algae grows?

What is shallow seagrass beds?

200

Has twisted, dark green straps with stalks attached to rhizomes.

What is common caulerpa?

200

Greenish-brown, fan-shaped fronds.

What is padina?

200

Have a photosynthetic pigment that absorbs blue light.

What is red algae?

200

Fragile pale-pink branches with stubby branchlets.

What is spiny seaweed?

300

Has pale yellow rhizomes with green branches.

What is grape caulerpa?

300

Olive-brown fronds with smooth margins.

What is dictyota?

300

An endpoint for pelagic sargassum.

What is the mid-Atlantic Sargasso Sea?

300

Quickly bleaches clear.

What is graceful redweed?

400

Forked, spongy green fingers.

What is green fleece?

400

Golden bouquets of pyramid-shaped fronds.

What is three-cornered hat algae?

400

One of the largest cells known to science.

What is sailor’s eye?

400

Flat, evenly forked branches.

What is thicket algae?

500

Looks like a thin broccoli floret.

What is shaving brush algae?

500

Leathery leaves covered by faint dots.

What is attached sargassum?

500

There is no distinction between individual cells.

What is coenocytic?

500

Branch tips frequently end in sickle hooks.

What is hypnea?