As adjectives the difference between homogenous and homogonous
is that homogenous is having the same genetic structure; exhibiting homogeny while homogonous is having all the flowers alike in terms of the stamens and pistils.
homogenous
English
Adjective
(
en adjective)
(biology) Having the same genetic structure; exhibiting homogeny
(proscribed)
Usage notes
According to The Oxford Guide to English Usage , 'homogenous' is a frequent error for homogeneous.
homogonous
English
Adjective
(-)
(botany) Having all the flowers alike in terms of the stamens and pistils.