lecanora vs archil

lecanora and archil both are nouns.

Word	Noun	Adjective	Verb	Adverb
lecanora	Yes	No	No	No
archil	Yes	No	No	No

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

lecanora: any lichen of the genus Lecanora; some used in dyeing; some used for food
archil: any of various lecanoras that yield the dye archil

Other hyponyms of lecanora include manna lichen, orchil.

lecanora (noun)	archil (noun)
any lichen of the genus Lecanora; some used in dyeing; some used for food	any of various lecanoras that yield the dye archil
	a purplish dye obtained from orchil lichens