Members of the kingdom Rhodophyta are the red algae or seaweeds. Almost all are marine and they vary greatly, some being filaments, some cushions, some feathery and others flattened discs. Many have a coating of calcium carbonate and form crusts or calcified trees that resemble corals. They contain phycobilins and chlorophyll a, but not chlorophyll b or c, and there are about 4,000 species known.
Subcategories 32
- Acrochaetiaceae
- Ahnfeltiaceae
- Areschougiaceae
- Bangiaceae
- Bonnemaisoniaceae
- Calosiphonaceae
- Caulacanthaceae
- Ceramiaceae
- Corallinaceae
- Cryptonemiaceae
- Cyanidiaceae
- Cystocloniaceae
- Delesseriaceae
- Dumontiaceae
- Furcellariaceae
- Gelidiaceae
- Gigartinaceae
- Gracilariaceae
- Halymeniaceae
- Helminthocladiaceae
- Hypneaceae
- Kallymeniaceae
- Melobesioideae
- Palmariaceae
- Petrocelidaceae
- Phyllophoraceae
- Plocamiaceae
- Polyidaceae
- Rhodomelaceae
- Rhodothamniellacae
- Rhodymeniaceae
- Sarcodiaceae
Sites 4
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- The Intertidal Rocky Shore: Coralline Algae and Green Seaweed Photographs of about 6 species of encrusting varieties of algae and about 10 of green seaweeds that grow around the coasts of New Zealand.
- Red Algae Information from Wikipedia on these seaweeds, their place in the fossil record, taxonomy and classification.
- The Intertidal Rocky Shore: Red Seaweeds Photographs of about 30 species of red algae that grow around the coasts of New Zealand.
- Rhodophyta Article by Jean-Marie Cavanihac on the red seaweeds and their complex reproductive cycles, with many fine images of the processes involved.