409 
the  valley  of  the  Stour  between  Clare  and  Haverhill,  W. 
Suffolk — J.  E.  Little.  It  is  hoped  that  notes  on  this  will 
appear  in  the  next  Report— G.G. 
P.  alba  L.  2  .  On  left  bank  of  the  Oughton,  Burford’s 
Ray,  Hitchin,  Herts.,  v.c.  20,  Mar.  9  and  June  25,  1912. 
One  of  a  number  of  old  P.  alba  in  this  district,  of  which  I 
have  sent  measurements  to  Mr.  Augustine  Henry  for  his 
Trees  of  Great  Britain  and  Ireland.”  The  largest  are  80 
feet  high.  Measurements  of  this  one  smaller;  Height  54-ft. 
Girth  at  3  feet  from  the  ground  9  feet,  spread  60  feet. 
Extremities  of  branches  rugged  with  large  pulvinus  at  the 
leaf  scar.  I  think  it  has  grown  more  slowly  than  the 
others— J.  E.  Little.  Yes;  unusually  tall  for  the  white 
poplar.  The  male  tree  seems  unknown  in  this  country _ 
A.B.J.  Correct,  I  think.  The  spring  leaves  are  not  lobed 
like  the  summer  leaves _ C.E.M. 
P.  alba  L.  2  •  On  left  bank  of  the  Ivel,  between 
Norton  Mill  and  Rad  well  Mill,  Herts.,  v.c.  20,  Mar.  25  and 
June  8,  1912.  One  of  four  large  trees  80  feet  high,  of 
which  measurements  have  been  sent  to  Mr.  Augustine 
Henry  for  his  “Trees  of  Great  Britain  and  Ireland.”  Girth 
at  3  feet  from  the  ground  (a  large  branch  began  just  above), 
13  feet,  spread  70  feet — J.  E.  Little.  I  agree _ A.B.J. 
P .^dcltoidea  Marsh,  x  nigra  L.  (“But  very  near  P. 
nigra.”— C.  E.  Moss).  A  staminate  tree.  Nearthe  Ford  at 
lckleford,  Herts,  v.c.  20,  Mar.  30,  May  30  and  Oct.  9,  1912. 
One  of  a  series  of  trees  under  observation  for  two  years. 
The  occasional  presence  of  glands  at  or  near  the  base  of 
the  lamina  of  the  leaf,  especially  in  late  summer  leaves, 
seems  to  show  a  cross.  Distinct  from  P.  serotina  Hartig. 
Petiole  hairy  in  young  state;  lamina,  buds  and  twigs 
glabrous — J.  E.  Little.  Certainly  very  near  P.  nigra,— as 
Dr.  Moss  suggests— A.B.J.  Yes,  P.  deltoidea  x  nigra , 
var.  betulifolia.  Cf.  P.  Lloydii  Henry  in  Elwes  &  Henry 
“Trees  of  Great  Britain  and  Ireland”  vii,  p.  1830  (1918). 
Cf.  also  “Cambr.  Brit.  FI.”  ii,  p.  11— C.E.M. 
.  Ampelopr asurn  L.,  var.  bulbiferum  Syme. 
Llills  below  Fort  George,  Guernsey,  Aug.  3,  1912— W  C 
Barton. 
