Contrast the structure of pollen cones (= staminate cones) and ovulate cones in a pine. What reproductive structures are produced by each cone type?
Added by Courtney C.
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They are usually located at the lower branches of the pine tree. The structure of pollen cones is simple, consisting of a central axis with numerous spirally arranged microsporophylls. Each microsporophyll bears two or more pollen sacs or microsporangia. These Show more…
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