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Planes, probably coeval with the Ely tree, namely, one at Pea- 
more, near Exeter, and the other at Woolbeding, Sussex, but 
no particulars of their history can be obtained. 
“On the Continent there are no examples of the London Plane 
approaching in size or age the fine trees at Ely and Barnes; 
and no mention is made of it by any Continental writer before 
1703, when it was briefly described by Tournefort. Since the 
latter date, the cultivation of the London Plane has spread over 
the Continent, and it is now common in towns in France and 
Germany. In the United States, as stated above, it is widely 
cultivated as a street tree, but almost invariably under the 
erroneous name of ‘P. orientalis.’ The true P. orientalis is 
very rare in America, and is never used for planting in streets. 
“When the seed of a first cross is sown the seedlings produced 
constitute a mixed and varied crop, in which are variously com- 
bined the characters of the two parents. The best proof then 
of the hybrid nature of P. acerifolia is the fact that is does not 
come true from seed, which appears to have been known to 
Lorberg in 1875. Two sowings made in recent years establish 
this very clearly. There are now eight seedlings planted in the 
Queen’s Cottage grounds at Kew which were raised from seed 
of P. acerifolia that was sown in April, 1911. These range in 
height from 4 to 10 feet, and are very diverse in foliage, some 
closely resembling P. orientalis and others resembling P. occiden- 
talis, a few being intermediate. One of them appears to be 
identical with P. hispanica, and another with P. cuneaia. ‘There 
are also two seedlings at Glasnevin which are the only survivors of 
a set raised for me at Cambridge in 1910 from seed of a large 
London Plane growing near the main gate at Kew. The rest 
of the set died from drought, having been transplanted into a 
field in that dry year. These two scedlings are extremely un- 
like in foliage; one has leaves indistinctly lobed resembling those 
of P. occidentalis. The other has deeply lobed leaves, and differs 
little from P. cuneata. 
“Several unsuccessful attempts have been made since I910 
to raise a numerous set of scedlings of the London Plane with 
the object of studying the botanical characters of the various 
