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
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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
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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
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Cycadophyllum
References External links Prehistoric gymnosperm genera Cycads Fossils of Germany wikipedia.org
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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
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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
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杉科
Taxodioideae Gymnosperm数据库柏科 Gymnosperm数据库-Sciadopityaceae S wikipedia.org
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Circumpolles
Circumpolles is a gymnosperm pollen type that is important in biostratigraphy and paleoenvironmental reconstruction. References Pollination Prehistoric gymnosperm genera wikipedia.org
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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
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贝壳杉
外部连结 Agathis dammara at the Gymnosperm Database. Agathis dammara B B wikipedia.org
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Dinophyton
Dinophyton is an extinct genus of gymnosperm found in late Triassic beds in North America. References Triassic plants Prehistoric gymnosperm genera wikipedia.org
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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
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