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algae of the phylum Chrysophyta, having mostly yellow and green pigments, occurring in soil, on moist rocks and vegetation, and on ponds and stagnant waters.
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|Noun||1.||yellow-green algae - any alga of the division Chrysophyta with its chlorophyll masked by yellow pigment|
alga, algae - primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves
Chrysophyta, division Chrysophyta - mostly freshwater eukaryotic algae having the chlorophyll masked by brown or yellow pigment; yellow-green and golden-brown algae and diatoms: Xanthophyceae, Chrysophyceae, Bacillariophyceae; some classification systems superseded or subsumed by Heterokontophyta
conferva - any of various algae of the genus Tribonema; algae with branching filaments that form scum in still or stagnant fresh water