Salix  tristis  (Sage  Willow :  Dwarf  Gray  Willow).  Dry  sandy  plains  j  a
small  shrub.
Salix  humilis  (Low  Bush  Willow).  A  shrub  6  or  8  feet  high.
Salix  discolor  (Two-colored,  Bog,  or  Glaucous  Willow).  In  wet  swamps
at  Dedhara.
Salix  eriocepho.la,  Mchx.  S.  prinoides,  Pursh.  (Silky-headed  Swamp  Wil-
low).   A  small  tree  in  swamps.
Salix  sericea  (Silky-leaved  Willow).  A  shrub  or  small  tree ;  promises  to
be  useful  in  basket-making.
'  P.  trenuiloidea,  of  most  botanists.    Objections  are  stated  with  regard  to  this  name
on  account  of  etymological  construction.
410        TREES  AND  SHRUBS  OF  MASSACHUSETTS.
Salix  cordata  (Heart-leaved  Willow).  A  low  tree  on  the  Connecticut,
Nashua,  and  other  rivers  of  the  State.
Salix  rostrata  (Beaked  Willow).  Found  in  all  varieties  of  soil,  but
growing  best  in  moderately  rich,  moist  grounds,  in  open  woods.
Salix  alba  (White  Willow).  Introduced,  and  extensively  planted  in  this
country.
Salix  vitelUna  (Yellow  Willow  :  Golden  Osier).  Introduced,  and  more  ex-
tensively propagated  than  any  other  foreign  willow.
Salix  fragilis  (Crack  Willow).  Introduced  ;  a  small  tree  of  rapid  growth.
Salix  Russelliana  (Bedford  Willow).  Introduced.  A  tree  of  rapid
growth.
Salix  nigra  (Black  Willow).  A  small  tree.
Salix  lucida  (Glossy  Willow).  A  small  tree  found  in  all  parts  of  the
State,  and  of  New  England.
Salix  Babylonia  {Wee]^ing  Willow).  Introduced.
IX.— AETOCARPiE  :   The  Bread-Feuit  Famly.
Morus  rubra  (Red  Mulberry).  Found  wild  on  Westfield  River.  Other
species,  as  the  M.  alba.,  M.  nigra,  &c.,  are  introduced.
X.— ULMACE^ :  The  Elm  Family.
Ulmus  Americana  (American,  or  White  Elm).  Found  throughout  the
State,  and  a  most  magnificent  tree.  It  grows  in  almost  any  soil,
but  best  on  rich,  moist  ground,  as  on  the  banks  of  large  rivers.
