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

Live on shallow seagrass beds and sand flats.

What is cactus algae?

200

Green brown bubble balls that appear partially flattened 

What is balloon seaweed? 

200

Have a photosynthetic pigment that absorbs blue light, allowing the plants to live at greater depths than green plants.

What is Red algae?

200

Has brown-red branches with tiny, stiff, pointed branchlets in whorls of three.

What is Red spineweed? 

300

Attaches with hairlike threads to hard substrates in waters greater than 5 ft deep.

What is sailors eye? 

300

Attach by a holdfast to rock in turbulent waters.

What is three cornered hat algae?

300

As it drifts it provides a habitat life-raft for hundreds of species of animals.

What is sargassum? 

300

Somewhat related to red Algae 

What is green algae?

400

Long, has slightly twisted, dark-green straps with slender stalks attached to rhizomes.

What is common caulerpa?

400

Long, has smooth, brown, elongate, leathery leaves covered by faint dots.

What is attached sargassum? 

400

Has invaded the Mediterranean Sea and is causing big ecological troubles.

What is caulerpa?

400

Grows in calm lagoons and often lives as unattached drift algae.

What is graceful redweed? 

500

Long, has forked, spongy, bright- to dirty-green fingers attached at a single holdfast.

What is green Fleece?

500

Extremely abundant in certain areas of the Florida keys 

What is dictyota?

500

Are coenocytic, no distinction between individual cells, with direct connections of cytoplasm throughout plant.

What is shaving brush Algae?

500

Have reddish, flat, evenly forked branches rooted at a single holdfast.

What is Thicket algae?

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