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Pine Family. 0. Living Gymnosperm Phyla. Conifers - Pinophyta or Coniferophyta. Cycadophyta - Cycads. Gnetophyta - Gnetophytes. Ginkgophyta - Ginkgos. Differences between the Pine Family and Cypress Family . Pine Family . Cypress Family. Seed cone woody or berry like
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0 Living Gymnosperm Phyla Conifers - Pinophyta or Coniferophyta Cycadophyta - Cycads Gnetophyta - Gnetophytes Ginkgophyta - Ginkgos
Differences between the Pine Family and Cypress Family Pine Family Cypress Family Seed cone woody or berry like Cone bract fused with cone scale Cone scales don’t overlap Leaves needle, awl or scale like • Woody seed cone • Cone bract present, free from cone scale • Cone scales overlap • Leaves needle like
Pines - genus Pinus of the family Pinaceae • Most familiar of all conifers • About 90 species
Needles produced in clusters (fascicles) of 1 to 5 0 Pine Leaves
Pines • Seed cones take two years to develop • Umbo with or without prickle on each cone scale • Cone scales overlap in seed cones • Two seeds with wings on top of cone scale
PseudotsugamenziesiiDouglas Fir Seed Cone Pollen Cone
PseudotsugamenziesiiDouglas Fir • Cones develop in one year • No umbo on cone scale • Bract is longer than cone scale
True cedars—the genus Cedrusdeciduous, upright cones, needles clusters on short side shoots
Cones of true cedars (Cedrus) Female (young, green, on the left) Male (brown, papery, on the right)
Mature cones of true cedar • All the cone scales fall off, carrying the seeds away, leaving only the central axis (spike)
Atlas Cedar and Deodar Cedar • Needles in clusters on short side shoots • Cones develop each year, without a distinct umbo • Seed cones are upright • Seed cones fall apart when mature so seeds can disperse
Differences between the Pine Family and Cypress Family Pine Family Cypress Family Seed cone woody or berry like Cone bract fused with cone scale Cone scales don’t overlap Leaves needle, awl or scale like • Woody seed cone • Cone bract present, free from cone scale • Cone scales overlap • Leaves needle like
Incense Cedar • Seed cone woody and hangs down • Cone scales in three pairs • Middle cone scale fertile • Produces 2 fertile seeds
Sequoia sempervirens, coast redwood Linear or awl-like leaves, small woody cones
Differences between the Pine Family and Cypress Family Pine Family Cypress Family Seed cone woody or berry like Cone bract fused with cone scale Cone scales don’t overlap Leaves needle, awl or scale like • Woody seed cone • Cone bract present, free from cone scale • Cone scales overlap • Leaves needle like