If someone were to examine the stamens of most flowering plants, they would never automatically think of them as sporophylls because they have very little leaflike structure, but look at the four stamens in Figure 23-1. These are from flowering plants. What leaflike characters do they have? Are they flat and at least somewhat resemble the blade of a leaf? Do they have vascular bundles that branch, at least somewhat resembling the reticulate venation of a dicot leaf? Most dicot leaves have three vascular bundles entering their petioles. Which two of these stamens also have this leaflike character? Which two have only one vascular bundle?

 Figure 23-1

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01 Austrobaileya Himantandra Degeneria Magnolia - Microsporangia