Posted by Gus on 11/4/2008, 4:28 pm, in reply to "Cadaghi (E. torelliana) I'm beginning to recognize them now!" Link: Eucalyptologics: Info resources on eucalypt cultivation worldwide
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Ok Walt, some answers to your questions 
The two genera --> The original name of this eucalypt species was Eucalyptus torelliana (so genus Eucalyptus, subgenus Corymbia). In 1995 there was a major change in eucalypt taxonomy, and subgenus Corymbia became a genus. So this one became Corymbia torelliana (genus Corymbia), and that is the increasingly used name nowadays. Jim Barrow explains it well here.
Bees --> I think Florida's bees are safe. Ours are. And some of them produce a great monofloral Eucalyptus honey (so, just from eucalypt foraging!). This happens in five continents too Not to mention the +35,000 tones of honey produced by bees in Australia per year, which necessarily have to forage on native flora. And eucalypts are a part of that 
Invasiveness --> Complex issue. In the right circumstances eucalypts can become invasive plants. But this rarely means a sizeable problem. Many factors to account. The major agent for eucalypt spreading is not any bird or wind dispersing seeds. It is human driven.
The photo you took of flower buds --> These are not yet nuts, not seeds either. Not yet. These are the flower buds before blooming. They are a helpful part of the tree for species identification. After they bloom and bees pollinate them, some of them might develop viable seed. Months (sometimes more than a year) after blooming the seed pods can be collected, seed extracted and more trees grown.
Nice pics Walt Thanks for sharing. It is possible that not all the trees in that golf course are C. torelliana. Whenever you find one of these, if you can handle a couple of leaves, crush them. If they smell clearly to lemon, then you got C. citriodora ("lemon scented eucalypt"). It is a simple test, and funny.
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