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Term Definition
Centrifugal stamen initiation A developmental process in which the stamens first initate near the center of the androecium (i.e., around the style) and then progressively toward the outside of the androecium. In other words, the stamens initiate and develop from the inside to the outstide of the androecium. The sequence of stamen initiation. Drawing by C.-H. Tsou.
Centripetal stamen initiation A developmental process in which the stamens first initate on the outside of the androecium (i.e., around the edge of the staminal) and progressively develop from the outside to the inside of the androecium. The sequence of stamen initiation. Drawing by C.-H. Tsou.
Stamen The male part of the flower comprised of the filament and the anther. Flowers of Gustavia superba.  Photo by S. A. Mori.
Vestigial stamen nectaries In the Lecythidaceae, the inner-most appendages at the apex of a fully-coiled, zygomorphic-flowered, neotropical Lecythidaceae that produce nectar which accumulates in the nectar chamber. Nectar-producing vestigial stamens and nectar chambers are only found in species of and . Fully coiled refers to species that have more than one inward coil, i.e., species with two or more coils. Nectar-producing vestigial stamens. Photos by S. A. Mori.