-June  ],  r  f>9. 
JOURNAL  OF  HORTICULTURE  AND  COTTAGE  GARDENER, 
451 
RICHARDIA  (OALLA)  ELLIOTTIANA  AND 
C.  PENTLANDI. 
C.  Ej-LIOttfaxa  was  exhibited  the  lirst  time  at  the  Royal  Horti- 
fultnral  Society’s  meeting:  held  fn  May  13th,  1890,  by  Captain  Elliott 
of  Farnborough,  Hants,  when  it  received  a  first-class  certificate  from 
the  Floral  Committee.  It  caused  quite  a  sensation  by  its  beautiful 
golden  yellow  spatl.es.  It  is  a 
greenltouse  herbaceous  perennial 
from  South  Africa,  requiring  a 
winter  temperature  of  about  40’’ 
to  50°,  but  it  must  be  allowed 
to  rest  during  the  autumn  and 
winter  months  by  keeping  the 
soil  almost  dry. 
The  footstalk  of  the  leaves 
is  from  15  to  20  inches  long, 
more  or  less  mottled  with  white. 
The  spathe,  which  is  of  a  very 
rich  and  pure  yellow,  is  rolled 
into  a  broad  trumpet-hke  tube 
4  to  5  inches  in  diameter  at  the 
mouth.  Strong  tubers  only  will 
])roduce  this  sized  spathes.  The 
spadix  is  almost  concealed  within 
the  tube,  and  is  a  shade  deeper 
in  colour  than  the  spathe. 
In  February  the  tubers  will 
commence  to  show  signs  of 
growth,  and  as  they  begin  to 
grow  potting  should  start. 
Shake  off  all  the  old  soil,  and 
put  them  in  small  j>ots  accord¬ 
ing  to  the  size  of  tubers,  then 
place  them  into  a  warmer  tem¬ 
perature  of  about  55°  to  G0°,  so 
as  to  give  them  a  good  start. 
They  will  root  freelv,  and  as 
the  pots  become  full  of  roots 
transfer  to  larger  sizes.  A  good 
four-year-old  tuber  will  require 
a  7  to  8-irich  pot  before  the 
spathe  begins  to  show.  Grivm 
])lenty  of  light,  and  place  them 
near  the  glass,  but  shade  from 
the  strong  rays  of  the  sun.  The 
soil  to  use  in  potting  should  be 
a  mixture  of  rich  fibrous  loam, 
with  one-third  leaf  mould  and 
silver  sand  or  peat  added.  'Ihe 
pots  must  be  well  drained,  and 
some  good  rough  soil  put  over 
the  crocks. 
As  a  rule  the  spathe  will 
show  itself  when  the  ]>lant  is 
developing  its  second  or  third 
leaf;  at  first  it  is  quite  green, 
and  as  it  continues  growing  so 
it  will  begin  to  show  signs  of 
colour.  In  abmt  a  fortnight 
it  becomes  a  beautiful  golden 
yellow,  which  colour  is  retained 
from  twelve  to  fourteen  days, 
when  it  gradually  turns  green 
again,  and  if  imjjregnated  with 
its  own  pollen  will  produce  a 
good  crop  of  seed,  which  should 
be  sown  two  to  three  weeks  after 
being  gathered.  The  freely 
produced  seeds  ought  to  flower 
in  from  two  to  three  years.  The 
spathes  are  never  so  large  on 
young  plants  as  fiom  tubers 
from  four  to  five  years  old. 
The  stock  can  also  be  increased 
by  suckers  and  divisions,  which 
should  be  done  just  as  they  begin  to  make  their  fresh  roots  in 
spring. 
The  yellow  Arums  do  not  require  so  much  water  as  C.  aethiopica 
or  africana,  neither  do  they  grow  so  strongly,  and  consequently  require 
a  little  more  attention,  and  a  warmer  temfrerature  when  growing. 
(J.  aethiopica  will  do  well  out  of  doors  during  the  summer  months, 
and  grow  luxuriantly,  for  which  purpose  the  yellow  kinds  have  been 
tried,  but  with  only  partial  success.  They  have  done  fairly  well  in 
a  few  places,  but  unless  the  tubers  are  strong,  and  planted  or  plunged 
in  a  very  warm  border,  they  will  not  come  to  that  perfection  as  under 
the  treatment  above  suggested. 
C.  Pentlandi  was  exhibited  by  R.  White,  Esq.,  cf  Pentland  House, 
Lee,  before  the  Floral  Committee  of  the  Royal  Horticultural  Society 
on  June  21st,  1892.  It  requires  jirecisely  the  same  treatment  as  the 
preceding.  The  cohur  of  the  spathes  is  very  much  the  same  in  both 
Fig.  100.— RICHARDIA  (CALLA)  ELLIOTTIANA. 
species,  although  on  some  plants  it  varies,  some  being  a  trifle  deeper  inr 
shade  than  others.  'Phe  jirincipal  distinction  between  the  two  is  that 
the  foliage  ofC.  Pentlandi  is  wholly  green,  and  has  a  broad  Hack  band 
at  the  base  of  the  spathe.  Both  species  require  an  intermediate  house, 
and  a  period  of  rest  during  the  autumn  and  winter. 
The  foregoing  description  sho.vs  how  di.stinct  both  are  from 
C.  ffithiopica  in  cultivation  and  colour.  T.hey  are  a  splendid  addition 
to  the  genus,  and  most  valuable  acquisitions  to  the  conservatory  and 
