157 
p.  114).— A.  Bruce  Jackson.  According  to  De  Candolle’s 
Prodromus  (vol.  XVI.,  part  2),  which  I  chiefly  rely  on  for 
distinguishing  these  introduced  poplars,  the  base  of  leaf 
of  P.  canadensis  ( P .  monilifera  Ait.)  is  so  variable  as  to 
be  a  poor  character  to  distinguish  it  from  P.  nigra.  The 
distinction  in  the  male  flowers  is  very  decisive  on  the 
other  hand,  and  till  I  know  a  great  deal  more  about 
poplars  than  at  present,  I  am  content  to  take  the 
Prodromus  as  a  guide.— E.P.L.  From  the  mention  of  a 
‘‘very  tall  tree,”  I  think  that  this  is  more  likely  to  be 
P.  canadensis . — E.S.M. 
, nigra,  Linn.  Ingarsby,  Leics.,  v.c.  55,  May,  1906. 
Male  flowers  and  leaf-branches. — A.  R  Horwood.  No 
this  is  P.  monilifera  Aiton,  which  is  very  common  in 
cultivation  m  England,  and  is  probably  of  American 
origin. — A.B.J. 
Gephalanthera  pallens,  Rich.  (1)  Plantation,  Gog- 
Magogs,  Cambs.,  v.c.  29,  June  11,  1907.— Coll.  R.  H.  Goode. 
Comm.  G.  Goode.  (2)  In  a  wood,  Harlington,  Beds, 
v.c.  3°.  June  17,  1907,  and  (3)  Park  Road,  Luton,  Beds. 
June,  1906.— D.  M.  Higgins. 
Epipactis  violacea,  Boreau.  Chiltern  Green  Wood 
near  Luton,  Beds.,  v.c.  80,  Aug.  20,  1907.— D.  M.  Higgins! 
Doubtless  right ;  but  more  characteristic  specimens  should 
be  taken.— E.S.M.  Specimens  much  too  poor  to  judge.— 
A.L.  Looks  more  like  E.  media,  Fr.,  to  my  eye,  and  not 
nice  any  of  my  specimens  of  E.  violacea,  Bor.,  but  it  is 
not  a  satisfactory  specimen  to  name. — E.F.L. 
Orc/zis  incarnata ,  Linn.,  var.  angustifolia ,  Bab. 
JDOtcheston  Bog,  near  Batby,  Leics.,  v.c.  55,  July  1907.— 
Coll  Miss  M.  Bell.  Comm.  W.  Bell.  Certainly’ not  the 
var.  angustifolia.  These  plants  are  very  difficult,  especially 
when  dried  ;  but  I  do  not  think  it  is  O.  incarnata  at  all. 
Ihat  (as  I  understand  it)  has  the  leaf-tips  hooded  and 
the  spur  conical.  I  should  call  this  O.  latifolia,  Linn.— 
Tty*'  J  can  add  n^hing  here.— A.L.  I  should  say 
U.  Latifolia,  more  narrow-leaved  than  usual. _ C.E.S. 
.  incarnata,  Linn.,  var. - .  Botcheston  Bog. 
.,  v.c.  55,  July,  1907. — Coll.  Miss  M.  Bell.  Comm.  ~W. 
