311 
is  very  rare  in  Britain,  even  as  a  cultivated  tree ;  nor  is  it 
P.  monilifera  Mich.  fil.  (=  P.  monilifera  Loud.),  which 
is  the  common  “  Black  Italian  Poplar  ”  of  cultivation  ;  but 
it  seems  to  be  P.  virginiana  Fougeroux  (“  Mem.  Soc.  Agric. 
Par.  1787  ”).  I  have  not  seen  this  description,  but  I  think 
this  is  the  plant  intended  by  continental  writers  (e.g., 
Ascherson  and  Gra-ebner  “Flo.  Mitteleur.”)  by  their  P. 
virginiana.  Some  examples  of  it  in  Kew  Gardens  are 
named  P.  marylandica ;  but  the  description  of  “P. 
marylandica  Bose”  in  Lamarck’s  “  Encycl.  suppl.  IV.” 
does  not  fit  the  plant.  This  poplar  does  not  appear  in 
any  of  the  British  floras  or  lists.  However,  it  is  subspon- 
taneous  in  several  fenny  places  in  Suffolk,  and  this,  I 
suppose,  must  count  as  its  first  British  record.  It’  is 
sometimes  planted,  as  on  the  roadside  in  West  Suffolk 
between  Barton  Mills  and  Icklingham,  also  in  grounds 
and  gardens,  as  in  Cambridge.  The  following  poplars 
belonging  to  this  group  are  usually  confused  by  British 
botanists (1)  P.  nigra  Linn,  (indigenous  in  southern 
and  eastern  England)  ;  (2)  P.  deltoidea  Marsh,  (very 
rarely  cultivated  in  Britain  ;  indigenous  in  N.  America) ; 
(3)  P.  canadensis  Moench  (the  “Black  Italian  Poplar”; 
commonly  cultivated;  origin  unknown);  and  (4)  P.  vir¬ 
giniana  Foug.  (cultivated  ;  origin  unknown).  P.  virginiana 
is  usually  (?  always)  a  pistillate  tree ;  P.  canadensis  is 
usually  (?  always)  a  staminate  tree.  The  above  three 
introduced  poplars  have  0,  1,  or  2  glands  at  the  base  of 
each  lamina :  these  glands  are  absent  in  P.  nigra.  P. 
deltoidea  is  slightly  ciliate  at  the  margin  of  the  lamina. 
P.  canadensis  (the  male  tree)  has  terminal  leaves  which 
are  decidedly  less  acuminate  than  those  of  P.  virqiniana 
(the  female  tree) _ C.E.M. 
Taxus  baccata  L.  Durdham  Down,  Bristol,  W.  Glos., 
v.c.  34,  March  19,  1910.  The  specimens  are  from  wild 
trees  common  in  the  district  on  the  limestone.— Ida  M. 
Boper. 
Orchis  incarnata  L.  ?  Flitwick  Marsh,  Beds.,  v.c. 
30,  June  1908.  The  flowers  of  my  specimen  are  not  well 
enough  dried  to  shew  the  distinctive  characters  properly  ; 
but  I  believe  it  to  be  O.  latifolia  L _ E.S.M. 
