s A Field Guide to the British Seaweeds - NMBAQC

o Foliose – plant is generally wide, flat and quite thin sometime only 1
cell thick often leaf like in appearance
• Encrusting forms – algae that grow over the rock surface with no erect
system
• Coenocytic forms – made up of acellular filaments, (not divided into cells)
and cell contents move freely within the filament, multinucleate
No cell divisions
• Large cartilaginous forms – firm and tough but slightly flexible with leather
like texture
Reduced species list identification guide as required by the Water Framework Directive 13