Spermatophyta
| Spermatophytes | |
|---|---|
Dicentra spectabilis | |
| Tacsanomaíocht | |
| Ríocht | Plantae |
| Foroinn | Spermatophytes |
Is éard is planda síl nó spermatophyte (go litriúil; 'planda síl';[1] ón tSean-Ghréigis σπέρματος (spérmatos) 'síol',[2] agus φυτόν (phytón) 'planda'),[3] ar a dtugtar freisin fanaragam (tacsan Phanerogamae),[4] ná aon phlanda soithíoch a tháirgeann síolta.[5] Is catagóir d'Embryophyta (.i. planda talún)[6] é a chuimsíonn an chuid is mó de na plandaí talún coitianta, lena n-áirítear na hAngiospermae (.i. plandaí bláthanna) agus na Gymnosperme (ga.gimnispeirm),[6] ach ní na raithnigh, caonaigh nó algaí.[7]



Díorthaítear an téarma fanaragam nó phanerogamae ón tSean-Ghréigis φανερός (phanerós), a chiallaíonn "infheicthe",[9] i gcodarsnacht leis an téarma "cryptogam" nó "cryptogamae" ón tSean-Ghréigis κρυπτός (kruptós) 'i bhfolach'),[10] mar aon leis an iarmhír γαμέω (gaméō)γω (gaméō), "pósadh".[11] Déanann na téarmaí seo idirdhealú idir na plandaí sin a bhfuil orgáin ghnéis fholaithe acu (cryptogamae)[12] uathu siúd a bhfuil cinn infheicthe acu (phanerogamae).[13]
Tuairisc
[cuir in eagar | athraigh foinse]Comhdhéanann na spermatophyta atá ar marthain cúig rannán,[6] agus aicmítear na chéad cheithre cinn díobh mar Gymnospermae,[6] plandaí a bhfuil síolfholaithe nó “síolta nocht” acu:[14]
- Cycadophyta - grúpa fothrópaiceach agus trópaiceach de phlandaí[15]
- Ginkgophyta- níl ach speiceas amháin ar marthain, Ginkgo biloba[16]
- Pinophyta - cuimsíonn cónaiféir, crainn a tháirgeann buaircíní (cóin)[17]
- Gnetophyta - cuimsíonn plandaí den 96 speiceas,[6] grúpáilte faoina trí finte Ephedra (fine Ephedraceae), Gnetum (fine Gnetaceae), agus Welwitschia (fine Welwitschiaceae)[18]
Is é an cúigiú rannán atá ar marthain ná na hAngiospermae (nó Magnoliophyta.), ar a dtugtar freisin plandaí bláthanna, an grúpa is mó agus is éagsúla de na Spermatophytes:[6]
- Angiospermae - na plandaí bláthanna, tá síolta folaithe i dtorthaí, murab ionann agus gymnosperms.[19]
Tagairtí
[cuir in eagar | athraigh foinse]- ↑ Introduction to the Spermatophytes: The seed plants. (n.d.). University of California Museum of Paleontology. Retrieved February 15, 2026, from https://ucmp.berkeley.edu/seedplants/seedplants.html
- ↑ Definition of “spermato-.” (n.d.). Collins Dictionaries. Retrieved February 15, 2026, from https://www.collinsdictionary.com/dictionary/english/spermato
- ↑ Definition of “phyton.” (n.d.). Collins Dictionaries. Retrieved February 15, 2026, from https://www.collinsdictionary.com/dictionary/english/phyton
- ↑ subphylum seed plants Spermatophytes. (n.d.). BioLib. Retrieved February 15, 2026, from https://www.biolib.cz/en/taxon/id2025764/
- ↑ seed plant. (n.d.). Encyclopædia Britannica. Retrieved February 15, 2026, from https://www.britannica.com/plant/spermatophyte
- 1 2 3 4 5 6 Magallón, S., & Hilu, K. W. (2009). Land plants (Embryophyta). The timetree of life, 133-137.
- ↑ Pandian, T. J. (2022). Evolution and speciation in plants. CRC Press.
- ↑ Welwitschia mirabilis. (2025, February 21). Cambridge University Botanic Garden. Retrieved February 15, 2026, from https://www.botanic.cam.ac.uk/the-garden/plant-list/welwitschia-mirabilis/
- ↑ Origin and history of phanero-. (n.d.). Etymonline. Retrieved February 15, 2026, from https://www.etymonline.com/word/phanero-
- ↑ Definition of crypto. (n.d.). In Dictionary. Retrieved February 15, 2026, from https://www.dictionary.com/browse/crypto
- ↑ Definition of “cryptogam.” (n.d.). Collins Dictionaries. Retrieved February 15, 2026, from https://www.collinsdictionary.com/us/dictionary/english/cryptogam
- ↑ Artenschutz Kryptogamen. (n.d.). Landesamt Für Umwelt (LfU). Retrieved February 15, 2026, from https://www.lfu.bayern.de/natur/bayaz/artenschutz_kryptogamen/index.htm
- ↑ Reichardt, H. W. (1865). Die Sporenpflanzen und ihre Unterschiede von den Samenpflanzen: Vortrag, gahelten am 20. Dezember 1865.
- ↑ Gymnosperms. (n.d.). The Gymnosperm Database. Retrieved February 15, 2026, from https://www.conifers.org/zz/gymnosperms.php
- ↑ Cycadales. (n.d.). The Gymnosperm Database. Retrieved February 14, 2026, from https://www.conifers.org/zz/Cycadales.php
- ↑ Dilgen, T. (n.d.). What the Ginkgo Can Teach Us about an Environmentally Conscious Future. Natural Selections. Retrieved February 15, 2026, from https://selections.rockefeller.edu/what-the-ginkgo-can-teach-us-about-an-environmentally-conscious-future/
- ↑ Plant Profile: Conifers. (2025, December 11). Powell Gardens. Retrieved February 15, 2026, from https://powellgardens.org/plant-profile-conifers/
- ↑ Gnetales. (n.d.). The Gymnosperm Database. Retrieved February 15, 2026, from https://www.conifers.org/zz/gnetales.php
- ↑ angiosperm. (n.d.). Encyclopædia Britannica. Retrieved February 15, 2026, from https://www.britannica.com/plant/angiosperm
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