alga vs chlorophyte

alga and chlorophyte both are nouns.

Word	Noun	Adjective	Verb	Adverb
alga	Yes	No	No	No
chlorophyte	Yes	No	No	No

As nouns, chlorophyte is a hyponym of alga; that is, chlorophyte is a word with a more specific, narrower meaning than alga:

alga: primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves
chlorophyte: algae that are clear green in color; often growing on wet ricks or damp wood or the surface of stagnant water

alga (noun)	chlorophyte (noun)
primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves	algae that are clear green in color; often growing on wet ricks or damp wood or the surface of stagnant water