arthrospore vs arthrosporous

arthrospore is a noun but arthrosporous is not a noun.

Word	Noun	Adjective	Verb	Adverb
arthrospore	Yes	No	No	No
arthrosporous	No	Yes	No	No

arthrospore (noun)	arthrosporous (noun)
one of a string of thick walled vegetative resting cells formed by some algae and fungi
a body that resembles a spore but is not an endospore; produced by some bacteria

arthrospore (adjective)	arthrosporous (adjective)
	of or relating to arthrospores