Producing or bearing wax, similar to ceriferous.
From Latin cera (wax) + -gerous (variant of -ferous, both meaning 'bearing'), an alternative form of ceriferous used in older scientific texts.
This is basically the fancy older cousin of 'ceriferous'—both mean the same thing, but cerigerous sounds more archaic and you'll find it in older botanical texts from the 1700s-1800s.
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