Topic #6: Families of Pinophyta

• Fill in the blanks

  A) pinophyta

  B) Pinaceae

  C) Araucariaceae

  D) Podocarpaceae

  E) Sciadopityaceae

  F) Cupressaceae

  G) Cephalotaxaceae

  H) Taxaceae

  I) Ginkgophyta

  J) Cycadophyta

  
• Pinaceae, Sciadopityaceae, and Cupressaceae are individually separated
• Araucariaceae is more allied to Podocarpaceae
• Sciadopityaceae have unique dimorphic shoots which creates an umbrella-like structure as leaves arise from the same point.
• Some representatives of Sciadopityaceae have cladodes (photosynthetic branchlets)
• The diploid chromosome number of Sciadopitaceaeis 20 and it is Monotypic
• Many groups have been absorbed into Cupressaceae
• Cephalotaxaceae is more allied to Taxaceae with phylogenetic evidence supporting it