PLS 127

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All genera and fams we need to know :)

Last updated 9:13 PM on 4/26/26
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34 Terms

1
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Pinaceae - Pinus

  • needle like leaves in fascicles on short shoots

  • also with bract like leaves, sheathing bundles

  • seed cone bract fused to scale

<ul><li><p>needle like leaves in fascicles on short shoots</p></li><li><p>also with bract like leaves, sheathing bundles</p></li><li><p>seed cone bract fused to scale</p></li></ul><p></p>
2
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Pinaceae - Abies

  • leaf bases not persistent

  • stems are smooth

  • seed cones erect

  • bracts and scales deciduous (cones don’t fall intact)

<ul><li><p>leaf bases not persistent</p></li><li><p>stems are smooth</p></li><li><p>seed cones erect</p></li><li><p>bracts and scales deciduous (cones don’t fall intact)</p></li></ul><p></p>
3
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Pinaceae - Picea

  • leaf tips pointy

  • leaf scar raised

  • leaf bases persistent

  • stems rough

  • seed cone pendent (hanging)

  • fall intact

<ul><li><p>leaf tips pointy</p></li><li><p>leaf scar raised</p></li><li><p>leaf bases persistent</p></li><li><p>stems rough</p></li><li><p>seed cone pendent (hanging)</p></li><li><p>fall intact</p></li></ul><p></p>
4
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Pinaceae - Pseudotsuga

  • leaf scar raised

  • smooth and round

  • seed cone bracts exserted

  • tips are 3-toothed

<ul><li><p>leaf scar raised</p></li><li><p>smooth and round</p></li><li><p>seed cone bracts exserted</p></li><li><p>tips are 3-toothed</p></li></ul><p></p>
5
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Cupressaceae - Juniperus

  • leaves linear

  • awl like

  • scale like or tightly appressed

  • stems can be alternate/opposite/4-ranked/whorls of 3 or 6

  • monoecious or dioecious

  • seed cones fused to bracts

  • JUNIPERUS ONLY: seed cones are fleshy

<ul><li><p>leaves linear</p></li><li><p>awl like</p></li><li><p>scale like or tightly appressed</p></li><li><p>stems can be alternate/opposite/4-ranked/whorls of 3 or 6 </p></li><li><p>monoecious or dioecious</p></li><li><p>seed cones fused to bracts</p></li><li><p>JUNIPERUS ONLY: seed cones are fleshy</p></li></ul><p></p>
6
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Cupressaceae - Calocedrus

  • leaves linear

  • awl like

  • scale like or tightly appressed

  • stems can be alternate/opposite/4-ranked/whorls of 3 or 6

  • monoecious or dioecious

  • seed cones fused to bracts

  • CALOCEDRUS ONLY: seed cone pendent, scales in 3 pairs

<ul><li><p>leaves linear</p></li><li><p>awl like</p></li><li><p>scale like or tightly appressed</p></li><li><p>stems can be alternate/opposite/4-ranked/whorls of 3 or 6 </p></li><li><p>monoecious or dioecious</p></li><li><p>seed cones fused to bracts</p></li><li><p>CALOCEDRUS ONLY: seed cone pendent, scales in 3 pairs</p></li></ul><p></p>
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