Saprolegnia is a genus of protozoans often called "cotton moulds" because of the characteristic white or grey fibrous patches they form. Current taxonomy puts Saprolegnia as a genus of the heterokonts in the order Saprolegniales.
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0