454 
M.  citrata  (i.e.,  a  glabrous  aquatica),  but  I  confess  I 
have  never  seen  Ehrhart’s  specimens  !  Not  the  same  as 
Mr.  J.  W.  White’s  Mendip  plant  distributed  through  the 
Exchange  Club  of  Brit.  Isles  in  1908. — C.E.S.  Mr. 
Bickham  may  be  justified  in  labelling  his  plant  M.  citrata 
Ehrh.  in  the  absence  of  any  certainty  as  to  its  parentage. 
In  the  “  Bond.  Cat.”  it  is  placed  as  a  variety  under  M. 
aquatica  L.  The  plant  is  almost  identical  with  what 
Mr.  J.  G.  Baker  sent  out  in  1868  as  M.  citrata ,  cult.  hort. 
Kew.  I  do  not  know  what  the  latest  views  about  this 
form  are,  but  there  appear  to  me  signs  of  a  connection 
with  M.  piperita  L.,  and  I  hazard  the  opinion  that  it 
arose  from  a  cross  between  that  species  and  M.  aquatica 
L. — E.F.L. 
Prunella  laciniata  L.  Near  Hardwick,  Cambs.,  v.c. 
29,  July,  1918. — A.  J.  Crosfield.  Much  finer  examples  than 
those  I  collected  near  Tilehurst,  Berks.,  in  July,  1907,  where 
it  occurs  in  old  pasture,  suggestive  of  enclosed  common 
land,  and  was  discovered  by  my  friend,  Mr.  H.  Weaver, 
in  1908.  In  this  locality  P.  vulgaris  grows  close  by  and 
I  saw  one  plant  which  had  cream  coloured  corollas  spotted 
with  purple,  indicating  hybridity. — A.B.J. 
P.  laciniata  x  vulgaris.  Near  Hardwick,  Cambs., 
v.c.  29,  July  3,  1913. — A.  J.  Crosfield  &  G.  Goode.  I 
entertain  no  doubt  that  the  specimens  are  the  suggested 
hybrid,  which  is  quite  common  near  Hardwick. — C.E.M. 
These  are  very  interesting;  cf.  Prunella  hybrida  Knaf. 
in  “  Lotos,”  XIV.  Jahrg.  (1864),  p.  84.  “  Spica  supremo 
foliorum  caulinorum  pari  suffnlta,  calycis  labii  inferioris 
dentibus  plus  minus  pectinato-ciliatis ,  fila?nentorum 
longiorum  spinis  plus  minus  antrorsum  curvatis  nec 
rectis,  foliis  plerumque  pinnatifidis,  sed  et  grosse  dentatis 
aut  subintegerrimis,  jloribus  caeruleis  vel  dilute  caeruleis. 
Ciliae  dentium  labii  calycis  inferioris  plerumque  breviores 
quam  in  P.  alba ,  sed  longiores  et  copiosiores  quam  in 
P.  vulgari . Equidem  nullibi  nisi  in  consortio  Prunellae 
vulgaris  cum  P.  alba  ejusmodi  formam  reperi,  unde  mihi 
suspicio  movebatur  hybriditatis . ”  This  is  said  to  be 
Prunella  hitermedia  Link  =  B.  laciniata  x  vulqaris. — 
E.B. 
Galeopsis  Ladanum  L.  (agg.).  ?  sub-sp.  (1)  Ref. 
No.  80.  Edge  of  G.N.  Railway,  near  Hitchin,  Herts., 
