Tweet this page Like this page Email this page Share this page Home» Resources » Identification » Identification of algae » Freshwater algae » How to identify algae » Identification guide » Filamentous » Filaments microscopic » Filaments are branched » Branch are markedly unequal Branches are markedly unequal, e.g. whorls of small branches off wide central axis Smaller subbranches are fine and not noticeably tapering Batrachospermum Smaller subbranches are further branched and tapered towards the tips Draparnaldia