Service berry

Service \Serv"ice\, n., or Service \Serv"ice\ [Properly, the
   tree which bears serve, OE. serves, pl., service berries, AS.
   syrfe service tree; akin to L. sorbus.] (Bot.)
   A name given to several trees and shrubs of the genus
   {Pyrus}, as {Pyrus domestica} and {Pyrus torminalis} of
   Europe, the various species of mountain ash or rowan tree,
   and the American shad bush (see {Shad bush}, under {Shad}).
   They have clusters of small, edible, applelike berries.
   [1913 Webster]

   {Service berry} (Bot.), the fruit of any kind of service
      tree. In British America the name is especially applied to
      that of the several species or varieties of the shad bush
      ({Amelanchier}.)
      [1913 Webster]
    

Juneberry \June"ber`ry\, n. (Bot.)
   (a) The small applelike berry of American trees of genus
       {Amelanchier}; -- also called {service berry}.
   (b) The shrub or tree which bears this fruit; -- also called
       {shad bush}, and {shad tree}.
       [1913 Webster]