The ontogeny of epiphyllous microsporangia Ginkgo indicated that the microsporophyll in Ginkgo is of phyllome origin.Possibly, the epiphyllous microsporangia is a peculiar chimera.

叶生子囊银杏生，表银杏子叶有叶性来源性质，叶生子囊银杏可能是一种奇特嵌合。