Ginkgophyta
Ginkgophyta The division of gymnosperms that includes only the extant Ginkgo biloba (maidenhair tree) and its extinct relatives. The first undoubted maidenhairs occur in Triassic rocks, and in the subsequent Jurassic Period their distribution was practically worldwide. The surviving species is restricted (in the wild) to China, and its leaves are strikingly similar to fossil Ginkgo leaves from the Triassic. The restricted geographical range, the unchanged appearance of the leaves, and the motile male sperms (otherwise known only in living seed plants in the Cycadales) have together led to the maidenhair being referred to as a ‘living fossil’.
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Ginkgoales , Ginkgoales (maidenhair tree) An order of the Coniferopsida, one of the major gymnosperm groups. Only one species of Ginkgo survives, Ginkgo biloba. T… Gymnosperm , Gymnosperms are one of the two major groups of plants that produce seeds; the other is the angio-sperms. Gymnosperm literally means “naked seed,” whi… Ginkgo , Ginkgo
Ginkgo biloba is a woody tree with a spreading form and a large trunk that reaches a height between fifty to eighty feet. The trees are sexual… Cycadophyta , Cycadophyta (cycads) A division of gymnosperms comprising plants with leaves and habit similar to those of palm trees, although some species are quit… Pinophyta , Pinophyta (pī´nŏf´ətə), division of the plant kingdom consisting of those organisms commonly called gymnosperms. The gymnosperms, a group that includ… Musci , Skip to main content
Musci
Musci
Musci (mosses; division Bryophyta) A class of plants all of which have a gametophyte that is differentiated into ste…
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Ginkgophyta
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Ginkgophyta