86 
R-  radula,  Weihe.  Lydbrook,  Herefordsh.,  v.c.  36, 
July  21,  1906. — S.  H.  Bickham  and  A.  Ley. 
R-  mutabilis,  Genev.  var.,  fide  Dr.  Focke.  Roadside 
waste  in  Thakeham  parish,  at  the  back  of  the  South 
Downs,  W.  Sussex,  v.c.  13,  July  26,  1902.  Known  to  me 
during  the  last  fifteen  years  as  occurring  in  abundance 
over  a  considerable  area.  Type  mutabilis  is  stated  by 
Mr.  Rogers  to  be  very  imperfectly  known  in  Britain.  I 
have  taken  the  Devon  plant  for  comparison,  and  find  that 
my  W.  Sussex  gathering  differs  as  follows: — Stem  less 
hairy,  but  much  more  glandular  with  a  dense  armature  of 
tubercular-based  prickles  and  strong  uneven  aciculi.  Lts. 
paler,  smooth  above,  not  rugose,  less  hairy,  and  with  close 
grey  felt  beneath;  margin  truly  dentate  with  simple 
shallow  and  nearly  regular  teeth ;  term.  It.  obovate- 
elliptical  cuspidate,  differing  widely  in  outline  from  the 
cordate-ovate-acuminate  It.  of  var.  nemorosus.  Sepals 
less  strongly  reflexed.  The  colour  and  texture  of  the 
foliage,  with  the  marked  chars,  of  outline  and  margin  strike 
me  as  specially  noteworthy.  In  some  respects  the  plant 
approaches  R.  rudis.  If  at  any  time  it  might  be  thought 
admissible  to  apply  a  distinctive  name,  I  would  suggest 
that  of  var.  Naldretti,  after  an  old  Sussex  family. — Jas.  W. 
White.  Certainly  very  distinct  from  the  Devon  var. 
nemorosus ,  and  especially,  as  Mr.  White  points  out,  in  the 
foliage  and  the  paler  colouring.  The  panicle  also  seems 
still  more  pyramidal  in  outline,  in  spite  of  its  truncate 
top,  while  its  prickles  are  far  slenderer  and  more  crowded. 
Thus  while  in  the  shape  of  the  leaflets,  though  not  in 
their  toothing,  hardly  distinguishable  from  the  Surrey 
R.  mutabilis  (which  may  stand  for  our  type),  in  panicle  it 
is  further  away  from  that  than  var.  nemorosus  is,  and  so 
may  well  claim  varietal  rank.  Mr.  White’s  Rudgwick 
plant  (July  19,  1893)  is,  as  he  has  pointed  out,  obviously 
different,  and  may,  I  think,  go  under  the  type. — W.M.R. 
R.  thyrsiger,  Bab.  The  Cairns,  Ponsanooth,  W. 
Cornwall,  July  11,  1906.  A  new  record  for  v.c.  1. — F.  H. 
Davey.  There  can,  I  believe,  be  no  doubt  as  to  the 
correctness  of  the  name ;  but  these  sheets  are  hardly 
quite  characteristic. — W.M.R. 
R.  plinthostylus,  Genev.  Ponsanooth,  Cornwall,  v.c. 
1,  Aug.  4,  1906.  Very  abundant  in  most  of  our  woods,  but 
