SINCE 1828
Protophyta
plural noun
Pro·toph·y·ta
| \ prəˈtäfətə\
Definition of Protophyta
: a major category of lower plants: such as
a
in former classifications
: a division or other group comprising the algae, fungi, and lichens
b
in some especially former classifications
: a division or other group comprising unicellular plants and including bacteria, yeasts, slime molds, blue-green algae, and various simple green algae
—often used as a term of convenience rather than strict taxonomy
— compare protista
c
in some classifications
: a division comprising unicellular and noncellular organisms and including blue-green algae, bacteria, rickettsias and related organisms, and viruses
—used chiefly in bacteriological taxonomy
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