How long ago was there a luridum there? Did you take it down? It would take several years to get a lanceanum to blooming size. Your photo definitely looks like lanceanum to me. How about a shot of the foliage? It would be pretty unusual for one to show up via natural causes in Florida as they're endemic to S. America (Venezuela, Columbia, Ecuador) and offshore in Trinidad. Have there been any hurricanes that covered this area and ended in Florida in the last 5-10 years?