Helvella sulcata vs genus Helvella

Helvella sulcata and genus Helvella both are nouns.

Word	Noun	Adjective	Verb	Adverb
Helvella sulcata	Yes	No	No	No
genus Helvella	Yes	No	No	No

Helvella sulcata (noun)	genus Helvella (noun)
a helvella with an irregularly convoluted cap that is dark brown when young and becomes dull grey with age; the lower surface of the cap is smooth and pale grey; the stalk is thick and deeply fluted	type genus of the Helvellaceae