Burknar Leiðsagnarvalbæta við greinina„A classification for extant ferns“10.2307/2506564625065646upprunalegu„The number of known plants species in the world and its annual increase“10.11646/phytotaxa.261.3.1
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Burknar
(Endurbeint frá Burkni)
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- Burkni er líka mannsnafn.
| Burknar Tímabil steingervinga: Snið:Fossil range | ||||||||||
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Burknar er hópur jurta með um 10,560 þekktar núlifandi tegundir[2] sem fjölga sér með gróum en ekki fræjum og hafa ekki blóm. Þeir eru frábrugðnir mosum að því leyti að þeir hafa æðakerfi sem flytur vatn og næringu. Þeir eru með greinda stofna og blöð eins og aðrar æðplöntur.
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Smith, A.R.; Pryer, K.M.; Schuettpelz, E.; Korall, P.; Schneider, H.; Wolf, P.G. (2006). „A classification for extant ferns“ (PDF). Taxon. 55 (3): 705–731. doi:10.2307/25065646. JSTOR 25065646. Afrit af upprunalegu (PDF) geymt þann 26 February 2008. Sótt 12. febrúar 2008..mw-parser-output cite.citationfont-style:inherit.mw-parser-output .citation qquotes:"""""""'""'".mw-parser-output .citation .cs1-lock-free abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-subscription abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registrationcolor:#555.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration spanborder-bottom:1px dotted;cursor:help.mw-parser-output .cs1-ws-icon abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center.mw-parser-output code.cs1-codecolor:inherit;background:inherit;border:inherit;padding:inherit.mw-parser-output .cs1-hidden-errordisplay:none;font-size:100%.mw-parser-output .cs1-visible-errorfont-size:100%.mw-parser-output .cs1-maintdisplay:none;color:#33aa33;margin-left:0.3em.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-formatfont-size:95%.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-leftpadding-left:0.2em.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-rightpadding-right:0.2em
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Christenhusz, M. J. M.; Byng, J. W. (2016). „The number of known plants species in the world and its annual increase“. Phytotaxa. Magnolia Press. 261 (3): 201–217. doi:10.11646/phytotaxa.261.3.1.
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