IB Plant Diversity PDF

and Evolution Plant Diversity https://i.pinimg.com/564x/a3/35/aa/a335aae0729c9c7705e4c26498c9a2c4.jpg Raven et al. 2020 https://www.researchgate.net/publicat...

and Evolution Plant Diversity https://i.pinimg.com/564x/a3/35/aa/a335aae0729c9c7705e4c26498c9a2c4.jpg Raven et al. 2020 https://www.researchgate.net/publication/328177919/figure/fig1/AS:679983928311810@1539132210877/Simplified-phylogeny-of-the-major-clades-of-streptophyte-plants-illustrating-the.png https://www.researchgate.net/publication/328177919/figure/fig1/AS:679983928311810@1539132210877/Simplified-phylogeny-of-the-major-clades-of-streptophyte-plants-illustrating-the.png  Bryophytes dominant gametophyte generation monosporangiate and matrotrophic sporophyte gametophyte nurtures and protects the ephemeral sporophyte Bryophyta Marchantiophyta Anthocerophyta capsule seta foot https://botit.botany.wisc.edu/botany_130/diversity/plants/nonvascular- https://live.staticflickr.com/5294/5481922765_30ef164aac_b.jpg https://i.pinimg.com/736x/ca/77/73/ca777380987a34c3db17914fc00a595f-- plants/images/Hornwort.jpg agree-with-gardens.jpg https://www.researchgate.net/publication/328177919/figure/fig1/AS:679983928311810@1539132210877/Simplified-phylogeny-of-the-major-clades-of-streptophyte-plants-illustrating-the.png https://www.researchgate.net/publication/328177919/figure/fig1/AS:679983928311810@1539132210877/Simplified-phylogeny-of-the-major-clades-of-streptophyte-plants-illustrating-the.png  Lycophyta Psilophyta Pterophyta Sphenophyta Pteridophytes https://www.digitalatlasofancientlife.org/wp- content/uploads/2020/03/Extant_tracheophyt e_relationships_11-1.png  Sphenophyta Ferns and Fern Allies simple and well differentiated stele enations,microphylls and Lycophyta megaphylls conspicuous, free-living sporophyte inconspicuous, subterranean, tuberous, but free-living gametophyte mostly one type of spores within the sporangium (homosporous) Pterophyta Psilophyta https://www.researchgate.net/publication/328177919/figure/fig1/AS:679983928311810@1539132210877/Simplified-phylogeny-of-the-major-clades-of-streptophyte-plants-illustrating-the.png https://www.researchgate.net/publication/328177919/figure/fig1/AS:679983928311810@1539132210877/Simplified-phylogeny-of-the-major-clades-of-streptophyte-plants-illustrating-the.png Gymnosperms ovules/seeds are borne on leaf-like structure or megasporophylls mostly wind pollinated Pinophyta Cycadophyta typical absence of vessels in secondary wood presence of resin canals reproductive organs borne on ‘truss’ (modified axis) that are typically reduced to pollen sacs and ovules arranged in a unisexual strobili Gnetophyta Ginkgophyta https://www.researchgate.net/publication/328177919/figure/fig1/AS:679983928311810@1539132210877/Simplified-phylogeny-of-the-major-clades-of-streptophyte-plants-illustrating-the.png https://www.researchgate.net/publication/328177919/figure/fig1/AS:679983928311810@1539132210877/Simplified-phylogeny-of-the-major-clades-of-streptophyte-plants-illustrating-the.png https://www.researchgate.net/profile/Joseph-Williams-8/publication/233834460/figure/fig1/AS:300114775166976@1448564346095/Phylogenetic- relationships-of-extant-seed-plants-For-ease-of-discussion-specific.png  https://www.researchgate.net/profile/Andre_Chanderbali/publication/5504712/figure/download/fig3/AS:66703196791 1943@1536044222278/Strongly-supported-summary-angiosperm-phylogeny-modified-from-Ref-109-in-accordance.png Bryophytes Angiosperms Gymnosperms Ferns and Fern Allies 1079 18,220 12,000 Number of species 370,000 295,000 – bryophytes cryptogams angiosperms gymnosperms Thank you!