Eucalyptus regnans is the tallest of all flowering plants, and possibly once the tallest of all plants. The tallest measured specimen is officially taken as 114.3 metres. The tree, Cornthwaite Tree or Thorpdale Tree, was first measured by theodolite in 1880. Next year it was felled and then measured by tape and there was close agreement. (Ken J. Simpfendorfer. "Big Trees in Victoria"). The stump commemorated with an insignificant plaque that exists today. The tree was about 1 metre shorter than the world's current tallest living tree, a Coast Redwood, 115.55 metres. The tallest specimens encountered by early European settlers are now dead as a result of bushfires, logging and advanced age. The tallest measured living specimen, Icarus Dream, was rediscovered in Tasmania in January, 2005 and is 97 metres high (Tasmanian Giant Trees Consultative Committee, ref. 1). It was first measured by surveyors at 98.8 metres in 1962 but the documentation had been lost. 15 living trees in Tasmania have been reliably measured in excess of 90 metres (Tasmanian Giant Trees Consultative Committee, ref. 3). Few living specimens in Victoria exceed 90 metres; old records of logged trees make varied claims of extreme heights, but these are difficult to verify today. The famous Ferguson Tree, a specimen in Victoria that fell after a bushfire, was measured by tape by a government surveyor, William Ferguson, on 21 February 1872, at 133 metres (436 feet), though this figure is not now generally accepted. Its crown had broken off and the diameter of the trunk at that point was still one metre, leading to claims that when it was intact the tree would have exceeded 150 metres (500 feet); this however presupposes that the break occurred in a hitherto undamaged tree. A more realistic scenario is of a shorter tree with several episodes of breakage and regrowth building up a stout stem without at any time attaining the claimed height.
http://en.wikipedia.org/wiki/Eucalyptus_regnans
Eucalyptus regnans is the tallest of all flowering plants, and possibly once the tallest of all plants. The tallest measured specimen is officially taken as 114.3 metres. The tree, Cornthwaite Tree or Thorpdale Tree, was first measured by theodolite in 1880. Next year it was felled and then measured by tape and there was close agreement. (Ken J. Simpfendorfer. "Big Trees in Victoria"). The stump commemorated with an insignificant plaque that exists today. The tree was about 1 metre shorter than the world's current tallest living tree, a Coast Redwood, 115.55 metres. The tallest specimens encountered by early European settlers are now dead as a result of bushfires, logging and advanced age. The tallest measured living specimen, Icarus Dream, was rediscovered in Tasmania in January, 2005 and is 97 metres high (Tasmanian Giant Trees Consultative Committee, ref. 1). It was first measured by surveyors at 98.8 metres in 1962 but the documentation had been lost. 15 living trees in Tasmania have been reliably measured in excess of 90 metres (Tasmanian Giant Trees Consultative Committee, ref. 3). Few living specimens in Victoria exceed 90 metres; old records of logged trees make varied claims of extreme heights, but these are difficult to verify today. The famous Ferguson Tree, a specimen in Victoria that fell after a bushfire, was measured by tape by a government surveyor, William Ferguson, on 21 February 1872, at 133 metres (436 feet), though this figure is not now generally accepted. Its crown had broken off and the diameter of the trunk at that point was still one metre, leading to claims that when it was intact the tree would have exceeded 150 metres (500 feet); this however presupposes that the break occurred in a hitherto undamaged tree. A more realistic scenario is of a shorter tree with several episodes of breakage and regrowth building up a stout stem without at any time attaining the claimed height.