the only tree that I see that might be the one you saw, hg,(in the patio pic) is a SourGum "Nyssa sylvatica" (called other things sometimes)...but it is really not a big tree.Behind it, out of sight, is a Poplar that is easily 80-90 ft. high.

(I 'should' be in Flori-duh this month, at the wood collectors convention, but time and $$$$...*sigh*.....you all have 50% of the trees in the US south of Tampa/St. Pete...I drool at what gets blown down in storms there....)