Final Exam Conifers: Pine
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Leaves: can have a long stem and leaves attached directly or short side stems with leaves attached, called fascicles; no compound leaves; all simple and can be needle- or scale-like
Conical in shape due to suppression from adjacent buds that won’t grow until they become a far enough distance away; the bottommost branches are the largest because they grow first and suppress the rest as they go upward
All are woody
Can be evergreen or deciduous (lose leaves in spring)
widely distributed throughout the world from the northern hemisphereto the southern
Unisexual or Bisexual
Male and female cones on both plant
Male: each cone scale produces a certain number of microsporangia and is a microsporophyll; transient
Female develop more slowly and are considered modified branches due to the bract (takes about 2.5 years)
Ornamentals and lumber used for framework
Most conifers produce resin because of the resin canals located in the stems and leaves; used for fungicide or to cover wounds; turns to amber
has shallow root system that extend outward from the tree; adjacent roots are going to intertwine with one another
Giant sequoia and coastal redwoods differ in their leaves
Distribution of coastal redwoods
coast of CA
juniper berries used to flavor gin
Unisexual or bisexual?
produce male and female cones, but female cones don't look like cones. Instead, they look like berries
In general, all conifers are__ in terns of reproductive structures.
Has separate male and female plants
Produces male cones, but not female cones
Produces individual seeds with an extra fleshy bright red layer around it
extremely toxic due to alkaloids (the seeds and the leaves are)
What would you like to do?
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