Flustra foliacea (broad-leaved hornwrack)

Flustra foliacea (Linnaeus, 1758) is a cheilostome marine bryozoan that is commonly found along the strand line, or high-tide mark, around the British coast especially after storms.

It has a distinctive lemon-like smell when fresh.

Known as the broad-leaved hornwrack, this bryozoan forms bushy flexible colonies 6–20cm in height, that are light grey-brown in colour.

It is often mistaken for a seaweed.

Species detail

  • Flustra foliacea
    Taxonomy

    Bryozoans consist of individuals called zooids that form a colony. Find out how you can identify Flustra foliacea colonies.

  • Flustra foliacea habitat
    Distribution

    This bryozoan is found in cold water areas on stony ground and forms a rich microhabitat for other animals. Find out more.

  • Flustra foliacea
    Biology

    Flustra can grow for at least 12 years and forms annual growth lines, similar to rings in a tree.

  • Hooke's Micrographia
    References

    Get reference material for Flustra foliacea.

Images

Flustra foliacea

Base of Flustra where it adheres to substrate.

© Natural History Museum, London
Flustra foliacea

Flustra foliacea fronds.

© Natural History Museum, London
Flustra foliacea

Electra pilosa encrusting Flustra foliacea.

© Natural History Museum, London
Flustra foliacea habitat

Flustra foliacea habitat.

© Dorset Seasearch
Flustra foliacea original description

Original description of Flustra foliacea from Linnaeus, 1758.

© Natural History Museum, London
R Hooke's Micrographia

R Hooke's Micrographia.

© Natural History Museum, London
R Hooke's microscope

R Hooke's microscope.

© Natural History Museum, London
Structure of Flustra foliacea

Structure of Flustra foliacea.

© Natural History Museum, London

About the author 

Mary Spencer Jones
Miss Mary Spencer Jones

Curator, Higher invertebrates, Department of Zoology

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