The gymnosperms (/ˈdʒɪmnəˌspɜːrmz, -noʊ-/ JIM-nə-spurmz, -⁠noh-; lit. 'revealed seeds') are a group of seed-producing plants that includes conifers, cycads...

sitchensis". Gymnosperm Database. "Doerner Fir – Tallest Douglas Fir". Retrieved 2013-02-25. "Pseudotsuga menziesii var. menziesii". Gymnosperm Database....

vary widely despite still being considered part of the gametophyte. In gymnosperms, the male gametophytes are produced inside microspores within the microsporangia...

Jurassic and Cretaceous Periods. It is characterized by the dominance of gymnosperms and of archosaurian reptiles, such as the dinosaurs; a hot greenhouse...

Softwood is wood from gymnosperm trees such as conifers. The term is opposed to hardwood, which is the wood from angiosperm trees. The main differences...

referred to as the subclass Dicotyledons into two tribes, Gymnosperms and Angiosperms. In the gymnosperms (or Gymnospermae) Lindley included two orders, the...

The gymnosperms consist of five orders of seed plants: Cupressales, Cycadales, Ginkgoales, Gnetales and Pinales. They developed more than 350 million...

Ginkgoopsida is a proposed class of gymnosperms defined by Sergei V. Meyen in 1984 to encompass Ginkgoales (which contains the living Ginkgo) alongside...

Angiosperms are distinguished from the other seed-producing plants, the gymnosperms, by having flowers, xylem consisting of vessel elements instead of tracheids...

arizonica (Arizona pine, pino de Arizona) description – I The Gymnosperm Database". The Gymnosperm Database. Retrieved 9 August 2018. Earle, Christopher J....