por Sarah Sletten hace 7 años
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Pterophytes
Lycophytes
Angiosperms
Seeds
provide food for embryo
facilitate dispersal
protect embryo
Flowers
petals and sepal
Carpel
ovary
style
stigma
Stamen
filament
anther
Fruits
mature ovaries
Gymnosperms
Conifers
pines, spruces, firs, cedars
timber and paper products
needle-like leaves
Cycads
tropical regions
Gnetophytes
arid regions
Ginkophytes
one remaining species
phloem
xylem
Mosses
Hornworts
Liverworts