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Peyssonnelia
Peyssonnelia is a genus of thalloid red alga comprising approximately 63 species. It includes the algae commonly known as rumoi-iwanokawa, mayoi-iwanokawa and akase-iwanokawa. Specimens can reach around 20 cm in size. Peyssonnelia produces tetraspores.
17 branches of this genus, most-observed first

Sea Rose
speciesPeyssonnelia squamaria

Peyssonnelia rosa-marina
speciesPeyssonnelia rosa-marina

Peyssonnelia rubra
speciesPeyssonnelia rubra

Peyssonnelia heteromorpha
speciesPeyssonnelia heteromorpha
Peyssonnelia boergesenii
speciesPeyssonnelia boergesenii

Peyssonnelia rosenvingei
speciesPeyssonnelia rosenvingei
Peyssonnelia coriacea
speciesPeyssonnelia coriacea

Peyssonnelia dubyi
speciesPeyssonnelia dubyi
Peyssonnelia caulifera
speciesPeyssonnelia caulifera
Peyssonnelia mexicana
speciesPeyssonnelia mexicana

Peyssonnelia bornetii
speciesPeyssonnelia bornetii
Peyssonnelia conchicola
speciesPeyssonnelia conchicola
Peyssonnelia clarionensis
speciesPeyssonnelia clarionensis
Cruoriopsis ensisae
speciesCruoriopsis ensisae
Peyssonnelia replicata
speciesPeyssonnelia replicata
Peyssonnelia armorica
speciesPeyssonnelia armorica
Peyssonnelia crispata
speciesPeyssonnelia crispata
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Peyssonnelia in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 131373.