Pyrus aria

from The Collaborative International Dictionary of English v.0.48
Whitebeam \White"beam`\, n. (Bot.)
   The common beam tree of England ({Pyrus Aria}); -- so called
   from the white, woolly under surface of the leaves.
   [1913 Webster]
    
from The Collaborative International Dictionary of English v.0.48
Beam tree \Beam" tree`\ [AS. be['a]m a tree. See {Beam}.] (Bot.)
   A tree ({Pyrus aria}) related to the apple.
   [1913 Webster]
    

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