Definitions
There is 1 meaning of the phrase
Subdivision Pinophytina.
Subdivision Pinophytina - as a noun
Most conifers: in some systems classified as a class (pinopsida) and in others as a subdivision (pinophytina); used in some classifications for one of five subdivisions of gymnospermophyta
Synonyms (Exact Relations)
class pinopsidapinophytinapinopsida