The important algae of the world by country

Africa
Spirulina
Australia
Durvillaea
Canada
Kelp
Chile
Durvillaea
China
Anaebaena-Azolla symbiosis, Laminaria – kombu, Porphyra (nori), Undaria – qundai-cai
Denmark
Furcillaria fastigiata
Fiji
Gracilaria (Lumicevata), Hypnea (Lumiwawa), Caulerpa racemosa (Nama), Codium geppii (Sagati)
Ireland
Gelidium latifolium, Gelidium pulchellum, Porphyra, Chondrus
Japan
Gelidium amansii, Laminaria – kombu, Porphyra (nori), Undaria – wakame
Korea
Porphyra (nori)
Mexico
Spirulina
New Zealand
Gigartina clavifera, Gigartina. undulata, Porphyra – karengo
Norway
L. digitata
Not listed
Acanthopeltis (?Denmark)
Not listed
Calcareous algae
Not listed
Chlorella
Not listed
Ecklonia
Not listed
Gigartina mamillosa (very similar and known as Irish Moss).
Not listed
Pterocladia (? Denmark)
Not listed
Ulva
Philippines
Eucheuma
UK
Ascophyllum nodosum – bladder wrack, Chondrus crispus (Irish Moss), Laminaria, Laminaria cloustoni – oar weed, Porphyra, Mastocarpus stellata, Diatom fossils,
USA
Chlamydomonas and other soil algae, Gelidium arborescens, Gelidium cartillagineum, Gelidium nudifrons, Macrocystis pyrifera, Porphyra
USSR
Ahnfeltia plicata, Phyllophora nervosa

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