What is Evolution of plants?
[[File:Trilete spores.png|thumb|right|A late [[Silurian]] [[sporangium]], artificially coloured. '''green''': A spore tetrad. '''blue''': A spore bearing a trilete mark&nbsp;– the ''Y''-shaped scar. The spores are about 30–35&nbsp;μm across]] [[File:Plant phylogeny.png|thumb|300px|[[Phylogenetic tree|Phylogenetic]] [[plant]] tree, showing the major [[clade]]s and traditional groups. <ref>T. Cavalier Smith 2007, [https://books.google.com/books?id=-YEYFhgUBsQC&pg=PA21 Evolution and relationships of algae major branches of the tree of life.] from: Unravelling the algae, by Brodie & Lewis. CRC Press</ref> and phylogeny of [[algae]],<ref>{{cite journal | last1 = Ševčíková | first1 = Tereza | display-authors = 1 | last2 = Horák | first2 = Aleš | last3 = Klimeš | first3 = Vladimír | last4 = Zbránková | first4 = Veronika | last5 = Demir-Hilton | first5 = Elif | last6 = Sudek | first6 = Sebastian | last7 = Jenkins | first7 = Jerry | last8 = Schmutz | first8 = Jeremy | last9 = Přibyl | first9 = Pavel | last10 = Fousek | first10 = Jan | last11 = Vlček | first11 = Čestmír | last12 = Lang | first12 = Franz B. | last13 = Oborník | first13 = Miroslav | last14 = Worden | first14 = Alexandra Z. | last15 = Eliáš | first15 = Marek | year = 2015 | title = Updating algal evolutionary relationships through plastid genome sequencing | journal = Scientific Reports | volume = 5 | page = 10134 | doi = 10.1038/srep10134 | pmid = 26017773 | pmc = 4603697 | bibcode = 2015NatSR...510134S }}</ref> [[bryophyte]]s,<ref>Theodor Cole & Hartmut Hilger 2013 [http://www2.biologie.fu-berlin.de/sysbot/poster/BPP-E.pdf Bryophyte Phylogeny] {{Webarchive|url=https://web.archive.org/web/20151123192055/http://www2.biologie.fu-berlin.de/sysbot/poster/BPP-E.pdf |date=2015-11-23 }}</ref> [[vascular plant]]s,<ref>Theodor Cole & Hartmut Hilger 2013 [http://www2.biologie.fu-berlin.de/sysbot/poster/TPP-E.pdf Trachaeophyte Phylogeny] {{Webarchive|url=https://web.archive.org/web/20160304191705/http://www2.biologie.fu-berlin.de/sysbot/poster/TPP-E.pdf |date=2016-03-