Hygrophorus sordidus vs waxycap

Hygrophorus sordidus and waxycap both are nouns.

Word	Noun	Adjective	Verb	Adverb
Hygrophorus sordidus	Yes	No	No	No
waxycap	Yes	No	No	No

As nouns, waxycap is a hypernym of Hygrophorus sordidus; that is, waxycap is a word with a broader meaning than Hygrophorus sordidus:

Hygrophorus sordidus: an edible fungus with a large white cap and a dry stalk and white gills
waxycap: any fungus of the family Hygrophoraceae having gills that are more or less waxy in appearance

Hygrophorus sordidus (noun)	waxycap (noun)
an edible fungus with a large white cap and a dry stalk and white gills	any fungus of the family Hygrophoraceae having gills that are more or less waxy in appearance