Lyngbya wollei (Plectonema wollei) Photo credit: Amanda Foss, https://www.researchgate.net/figure/249962358_fig3_Fig-3-Micrographs-of-Lyngbya-wollei-scale-bars-are-50-mm-A-exhibiting-false

Codium fragile ssp. tomentosoides Photo credit: Luis A. Solorzano, californiabiota.com

Didymosphenia geminata Photo credit: Sarah Spaulding, U.S. Geological Survey

Prymnesium parvum Photo credit: Texas Parks and Wildlife

Gracilaria vermiculophylla Photo credit: © Ignacio Bárbara (barbara@udc.es).

Nitellopsis obtusa Photo credit: Kristian Peters-Fabelfroh 12:41, October 2006-Wikimedia Commons