class Ginkgopsida
       n : ginkgos: in some systems classified as a class (Ginkgopsida)
           and in others as a subdivision (Ginkgophytina or
           Ginkgophyta); used in some classifications for one of
           five subdivisions of Gymnospermophyta [syn: Ginkgopsida,
            Ginkgophytina, subdivision Ginkgophytina, Ginkgophyta]