Mitrula elegans vs cup fungus

Mitrula elegans and cup fungus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Mitrula elegans	Yes	No	No	No
cup fungus	Yes	No	No	No

As nouns, cup fungus is a hypernym of Mitrula elegans; that is, cup fungus is a word with a broader meaning than Mitrula elegans:

Mitrula elegans: a discomycete that is 3-8 cm high with an orange to yellow fertile portion and white or pinkish stalks often half in and half out of the water
cup fungus: any fungus that is a member of the subclass Discomycetes

Other hypernyms of Mitrula elegans include discomycete.

Mitrula elegans (noun)	cup fungus (noun)
a discomycete that is 3-8 cm high with an orange to yellow fertile portion and white or pinkish stalks often half in and half out of the water	any fungus that is a member of the subclass Discomycetes