408 ' LIRIODENDRON TULIPIFERA. 
Cultivated trees are common in Boston and its 
‘vicinity, but I have never met with it in the woods 
of this part of the pat nor to: the north of it © 
Nar gd eh he sie wilingg 
~ In point of size the Litiodendton i is eocegaiial 
‘by few trees of the: North» American forest. Its 
growth is regular, straight and majestic. Its trunk 
often acquires a diameter of from two to three 
feet, and an elevation of eighty or ninety. In fa- 
vourable situations it frequently exceeds. these di- 
mensions. \ Michaux measured a tree near Louis- 
ville-in Kentucky, which at: five feet from the 
ground was:twenty two feet.and an half in cireum- 
ference, and which he estimated to be a. hundred 
and twenty or a hundred and forty feet in height. 
Catesby: informs us that. hts aa ciginaeslecs is 
- sometimes thirty feet, : beside 
- “Lhe names of. Pulip. ee White. nee anne 
wood, and. Poplar are applied to this tree in diffe- 
rent parts of the United States. Its flowering 
sen is inthe months of May.and June. 
The genus Liriodendron, to which» Linneus 
has assigned four species of trees, is characterized 
by @ double calya, the. outer of two, the inner of 
three leaves 3 nal wing seeds imbricated into a 
ees idiot Daten: 
