phytology vs apogametic

phytology is a noun but apogametic is not a noun.

Word	Noun	Adjective	Verb	Adverb
phytology	Yes	No	No	No
apogametic	No	Yes	No	No

phytology (noun)	apogametic (noun)
the branch of biology that studies plants

phytology (adjective)	apogametic (adjective)
	of or relating to the development of an embryo in the absence of fertilization