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PTELEA TRIFOLIATA. 
The largest tree of this species, existing in Britain, and probably on the globe, 
is at Gordon Castle, in Bamffshire, Scotland. In 1835, it had attained the height 
of forty-five feet, with a trunk fifteen inches in diameter, and an ambitus or 
extent of branches of twenty-seven feet. It was grown in a loamy soil and in a 
sheltered situation. 
In France, at Paris, in the Jardin des Plantes, there is another tree of this spe- 
cies, which attained the height of thirty-seven feet in sixty years after planting, 
with a head forty feet in diameter. 
In Saxony, at Worlitz, there is also a tree of this species, which attained the 
height of twenty-five feet in forty-five years after planting ; and another tree of 
the variety Ptelea trifoliata pentaphylla, that reached the height of fifteen feet at 
thirty-four ye*iis planted. 
