Taxon Contributors
Contributors produce comprehensive documentation on diatoms, leading to consistent and correct taxonomy.
The diatom genus Orthoseira is typical of moist habitats of soils, mosses, and tree bark. It can be found from the tropics to high latitudes.
The diatom genus Orthoseira is typical of moist habitats of soils, mosses, and tree bark. It can be found from the tropics to high latitudes.
diatoms.org
diatoms.org
Become a taxon contributor Learn more
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 171 genera completed to date.
Species
Identification guides, original descriptions, citations, autecological information and more for 1023 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
15 May 2022
In appreciation of our contributors
Welcome to our new taxon page contributors Gus Danz, Laura Lopera Congote, and Mike Sullivan! Thank you to all our taxon page contributors, all 161...
15 May 2022
Diatom Web Academy 2022
The Diatom Web Academy is on break for the summer... Sessions are recorded and can be accessed for later viewing. You are invited to join us,...
10 May 2022
WEBINAR: Level 2 Diatom Species Exam
Introduction to the Level 2 Diatom Species Exam Description: To insure that analysts are qualified in diatom identification, a genus level exam...
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.
