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gymnosperm
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gymnosperm
gymnosperm Bot. (ˈdʒɪmnəspɜːm) [ad. mod.L. gymnosperm-us, ad. Gr. γυµνόσπερµ-ος, f. γυµνό-ς naked + σπέρµ-α seed, sperm. Cf. F. gymnosperme.] A plant which has naked seeds, as the pine, hemlock fir, etc.; one of the Gymnospermæ, a class of exogenous plants so characterized, embracing the orders Cyca...
Oxford English Dictionary
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Gymnosperm
Gymnosperm lifecycles involve alternation of generations. Diversity and origin
Over 1000 living species of gymnosperm exist.
wikipedia.org
en.wikipedia.org
gymnospermous
gymnospermous, a. Bot. (dʒɪmnəˈspɜːməs) [f. mod.L. gymnosperm-us (see prec.) + -ous.] Naked-seeded; applied to those plants, e.g. conifers, in which the seeds are not provided with a seed-vessel; belonging to the class Gymnospermæ.1727 in Bailey vol. II. 1760 J. Lee Introd. Bot. ii. v. (1765) 84 Suc...
Oxford English Dictionary
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List of gymnosperm families
Systematic
Gymnosperm
Gymnosperm families
gymnosperm families
Gymnosperms
wikipedia.org
en.wikipedia.org
Is a Ginkgo tree a conifer? I know Ginkgo is a gymnosperm, but I was wondering whether Ginkgo is also technically a conifer. I did a Google search, and found several confident authoritative-sounding answers. Unfortuna...
The scientific answers are pretty clear: Gingkos are not closely related to the conifers, they are closer related to the cycads. See this phylogenetic tree based on the 18S RNA from paper 2: !enter image description here It shows that conifers and Ginkgos are relative close related, but not on the s...
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Pseudotsuga menziesii var. lindleyana
References
External links
The Gymnosperm Database: Pseudotsuga lindleyana - Old Classification
The Gymnosperm Database: Pseudotsuga lindleyana in Pseudotsuga
wikipedia.org
en.wikipedia.org
Cycadophyllum
References
External links
Prehistoric gymnosperm genera
Cycads
Fossils of Germany
wikipedia.org
en.wikipedia.org
Daohugouthallus
It has been confirmed that D. ciliiferus was an gymnosperm epiphyte due to the more recent specimens being found attached to an unidentified gymnosperm The landscape was composed of gymnosperm-dominated forests interspersed with lakes and freshwater streams.
wikipedia.org
en.wikipedia.org
Walkomiella
Walkomiella is an extinct conifer-like gymnosperm genus which occurred in India and Africa in the Lower Permian, and in Australia in the Upper Permian. References
Conifer genera
Prehistoric gymnosperm genera
Permian plants
wikipedia.org
en.wikipedia.org
Circumpolles
Circumpolles is a gymnosperm pollen type that is important in biostratigraphy and paleoenvironmental reconstruction. References
Pollination
Prehistoric gymnosperm genera
wikipedia.org
en.wikipedia.org
鲸和偶蹄目组成新的鲸偶蹄目谁承认啦?
被子植物:Angiosperm Phylogeny Group-被子植物系统发生学组 裸子植物:Gymnosperm Phylogeny Group-裸子植物系统发生学组(Botanical Society of America 美国植物学会去年才成立的一个组织,还没听说什么成果) 蕨类植物:Pteridophyte
zhihu
www.zhihu.com
贝壳杉
外部连结
Agathis dammara at the Gymnosperm Database.
Agathis dammara
B
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wikipedia.org
zh.wikipedia.org
Dinophyton
Dinophyton is an extinct genus of gymnosperm found in late Triassic beds in North America. References
Triassic plants
Prehistoric gymnosperm genera
wikipedia.org
en.wikipedia.org
土耳其松
外部连结
NPGS/GRIN - Pinus brutia information
Photos of trees in Turkey (scroll down page)
Gymnosperm Database - Pinus brutia
Conifers Around the World:
wikipedia.org
zh.wikipedia.org