Duckweeds (Lemna) in Britain and Ireland

Relevant resources touching on British species, not necessarily British -

Highest Quality Guides

Richard Lansdown, Fred Lumsey, Helen Crouch (PDF, 2 pages) Summary detail sheet

Richard Lansdown and Fred Lumsey (JPG, 1 page) Summary detail sheet

Helen Crouch and Fred Rumsey (PDF, 23 pages)

BSBI Lemna Crib (PDF, 3 pages)

BSBI similar plants, see pp18-21 (PDF, 4 pages)

Secondary Guides

Opal guide (PDF, 2 pages) which is a friendly starter but has imperfections

Text Descriptions

Flora of North America key (Web) click species for details

Minnesota Pages with extremely detailed photos

General Index (Web) scroll down in it!

Species list (Web)

Comparison dckwdher2.htm (Web)

Comparison dckwdher3.htm (Web)

SEINet Pages with photos

Lemna gibba (Web)

Lemna minor (Web)

Lemna turionifera (Web)

Illustrations

Lemna gibba (JPG)

Lemna minor (JPG)

Lemna trisulca (JPG)

Lemna polyrrhiza (JPG)

Lemna minor + trisulca (GIF)