Negrón-Ortiz V., Strittmatter L. I., Embryology of floral dimorphism and gender system in Consolea corallicola (Cactaceae), a rare species of the Florida Keys, Haseltonia, 2004, 10:16-25
The study compares the developmental anatomy of primary and secondary flowers in material from Torchwood Hammock. It describes ovule degeneration and the occasional persistence of individual ovules capable of further development.
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