The organism is one of the most primitive red algae.

In some red algae it may take the form of a depression into the thallus.

It is usually found in association with red algae.

A similar sexual cycle is present in the red algae (Rhodophyta).

I've recently started to have a problem controlling red algae, especially on the coral sand.

The figure on page 61 shows the photosynthetic factory of a red alga.

The red alga, he reported, would be suitable for salads.

The deepest living seaweeds are some species of red algae.

There's some sort of red and green algae reported along the shoreline.

Lamouroux was the first to make the distinction between green, brown and red algae.