553 
Agrees  well  enough  with  description  and  Plate  129  of  the 
“  Camb.  Brit.  FI.”  I  have  the  same  thing  from  Surrey 
and  Dorset _ E.S.M.  Yes. —  C.E.S. 
P.  Persicaria  L.,  var.  elatum  Gren.  &  Godr.  Moist 
ditch,  Whitmoor  Common,  Surrey,  v.c.  17,  Sept.  1915. — 
J.  Comber.  Yes. — C.B.  &  J.W.W. 
P.  maculatum  Trim.  &  Dyer.  By  Briton’s  Pond,  near 
Guildford,  Surrey,  v.c.  17,  Sept.  1915. — J.  Comber.  Correct, 
we  believe. — C.B.  &  J.W".W.  I  think  this  is  one  of  the 
numerous  forms  of  P.  persicaria  x  lap  a  bhi folium — C.E.M. 
P. - ?  Sandy  field,  Worplesdon,  Surrey,  v.c.  17, 
Sept.  1915.— J.  Comber.  Perhaps  this  may  be  P.  aviculare 
L.,  var.  angustissimum  Meisner  (“  Camb.  Brit.  FI.”  pi.  138). 
— E.S.M.  I  think  this  would  come  under  aequale  Lindman, 
but  it  is  gathered  too  late  to  show  the  leaves,  etc., 
satisfactorily.— C.E.S.  P.  aequale  Lindman.— C.E.M. 
Euphorbia  platyphyllos  L.  Cultivated  land,  Wolvers, 
near  Reigate,  Surrey,  v.c.  17,  Oct.  8,  1915.  It  is  interesting 
to  note  that  John  Stuart  Mill  found  this  Spurge  in  this 
locality  more  than  fifty  years  ago.—  C.  E.  Salmon. 
E.  Esula  L.  Downs  at  Lewes,  S.  Hants.,  v.c.  11, 
June  17,  1915 _ R.  S.  Standen. 
E.  Cyparissias  L.  Near  Horsley,  S.  Hants.,  v.c.  11, 
June  10,  191 5  r — R.  S.  Standen. 
E.  exigua  L.,  [var.  retusa  L.] .  North  Road,  near 
Baldock,  Herts.,  v.c."  20,  July  3,  1915 — H.  C.  Littlebury. 
The  leaves  of  my  plants  are  not  retuse ;  only  the  type,  I 
believe. — E.S.M.  One  example  only  on  my  sheet  seems 
the  variety  ;  the  remaining  (eleven)  specimens  are  type.— 
C.E.S. 
Quercus  Cerris  L.  Nassau  Woods,  Dolgelley,  Merion- 
ethsh.,  v.c.  48,  Aug.  9,  1915.— W.  C.  Barton.  Yes,  typical 
Q.  Cerris ,  which  is  not  a  native  of  Britain,  but  occasionally 
establishes  itself  from  self-sown  acorns. — A.B.J.  Yes. — 
C.E.M. 
Salix  triandra  [  x  viminalis  $  (  =  S.  hippophaefolia 
Thuill.)] .  Withy  bed,  Corston,  N.  Somerset,  v.c.  6,  Apr.  24 
