How to Tell Apart Mini-guide << view all mini guides S E A W E E D Monostroma grevillei Protomonostroma undulatum Download PDF Text by Jordan Chalfant Photos by Jordan Chalfant Design by Celeste Mittelhauser Share Related Mini Guides Mini Guide Common Brown Seaweed Blades: Part 2 by Jordan Chalfant Mini Guide Common Brown Seaweed Blades: Part 4 by Jordan Chalfant Mini Guide Common Brown Seaweed Blades Part 1 by Jordan Chalfant