Taxon Contributors
Contributors produce comprehensive documentation on diatoms, leading to consistent and correct taxonomy.
For over 400 years, this country has practiced overt, insidious, and structural racism.
People of privileged race, wealth, or health - we must change our society to be inclusive, including making science inclusive.
Justice, equality, humanity.
For all.
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Diatoms of North America is a collaborative work in progress, growing and changing as science advances.
Taxa by Morphology
New to diatoms? Jump into diatom identification using the visual key.
Editorial Review Board
Using diatoms in assessment? Specify the use of Diatoms of North America in contracts and task agreements.
What are Diatoms?
Diatoms are single-celled algae that live nearly everywhere there is water - streams, ponds, lakes, oceans, and even soils.
For practitioners
Taxon
Identification Guide
Genera
Classification information, citations, links and species listings for 164 genera completed to date.
Species
Identification guides, original descriptions, citations, autecological information and more for 975 species and growing.
We encourage new contributors to submit taxon pages.
This project depends on many people to document the diverse diatom flora of streams, rivers, wetlands, lakes, springs, soils, estuaries and coastal zones.
Recent News & Projects
26 May 2020
Voucher Flora Workshop
Instructor: Meredith Tyree, Institute of Arctic and Alpine Research (INSTAAR), University of Colorado Topic: Voucher Floras, Parts I and II...
26 May 2020
Diatom Web Academy
We are expanding the number of webinars in the Diatom Web Academy during the pandemic. Each session will be recorded and can be accessed for...
05 March 2020
Splendid cyanobacteria, spectacular diatoms
Apply now for the Freshwater Algal Identification Field Course at the scenic Fordham University field station. The course focuses on algal...
Diatoms of North America has been developed in part with the generous funding and support of US EPA, USGS, the Institute of Arctic and Alpine Research at University of Colorado Boulder and other organizations.
