November  21,  1901.  JOURNAL  OF  HORTICULTURE  AND  COTTAGE  GARDENER. 
459 
Angraecum  Sanderianum. 
From  the  accompanying  illustration  those  cultivators  of 
'Orchids  who  do  not  possess  Angraecum  Sanderianum  can  obtain 
■a  very  fair  impression  of  its  beauty  and  general  character.  The 
is  a  safeguard  to  clean  plants  and  checks  the  attacks  of  insects 
before  they  have  time  to  injure  them. 
The  baskets  in  which  Galeandras  are  grown  should  be  kept 
up  as  close  to  the  glass  as  possible.  If  the  tops  of  the  plants  are 
an  inch  or  two  clear  of  the  glass  they  will  come  to  no  harm,  and 
the  increased  light  they  obtain  will  be  all  in  their  favour. 
Growers  in  the  vicinity  of  large  towns  have  found  of  late  that 
their  plants  are  not  much  better  off  close  to  the  glass  than  away 
from  it  as  far  as  the  light  is  concerned,  the  sooty  deposit  left  by 
the  fog  effectually  excluding  this  aid  to  culture.  The  only  thing 
to  do  is  to  mop  the  glass  down  outside  as  frequently  as  possible, 
and  sponge  the  inside,  for  the  best  glazing  system  ever  invented 
will  not  keep  out  a  London  or  Manchester  fog. 
Galeandras  are  not  the  only  Orchids  that  are  benefited  by 
ANGErECUM  SANDERIANUM. 
species  is  grown  in  baskets  suspended  from  the  roof  of  a  house 
with  a  temperature  of  -55deg  to  60deg,  where  it  generally  thrives. 
It  is  free  flowering,  the  long  racemes  being  coloured  creamy- 
white.  It  was  originally  brought  from  the  Comoro  Islands,  which 
lie  north  of  the  Mozambique  Channel,  and  summer  is  the  season 
when  the  long  drooping  scapes  open.  The  stems  are  6in  to 
15in  long. 
The  Week’s  Cultural  Notes.  < 
Not  many  species  of  Galeandra  are  now  grown  in  collections, 
G.  Devoniana  being,  perhaps,  as  frequently  seen  as  any.  This 
is  now  coming  into  flower,  and  until  after  the  blossoms,  are  past 
the  water  supply  must  not  be  reduced.  But  when  they  are  over 
the  work  of  the  plant  is,  as  it  were,  finished  for  the  year,  and 
only  sufficient  moisture  is  needed  to  keep  the  roots  alive  and  the 
pseudo-bulbs  from  shrivelling.  Less  heat  is  also  necessary,  the 
species  being  very  subject  to  the  attacks  of  thrips  and  red  spider 
if  kept  dry  and  hot.  Occasional  dipping  in  weak  tobacco  water 
light  now  ;  that  fine  Dendrobium  De.arei,  just  out  of  flower,  needs 
plenty  of  it.  Its  growth  is  finished  for  the  season,  and  the 
flowers  are  past ;  but,  nevertheless,  the  plant  must  have  light. 
Odontoglossums,  again,  are  pining  for  the  light  that  we  could 
not  give  them  in  summer,  simply  because  during  our  long  days 
the  sun  has  too  much  power ;  while  in  their  native  haunts  high 
up  on  the  Andes,  where  the  day  and  night  are  more  nearly  equal, 
they  are  subjected  to  very  similar  conditions  all  the  year  round. 
Just  now,  in  short,  the  grower  of  Orchids  must  take  more  care 
of  individual  species  than  at  any  other  season.  Some  sorts  are 
finished  ;  some  plants  of  the  same  species  are  at  rest  while  others 
are  still  growing ;  one  might  almost  say  that  each  individual 
plant  wants  watching.  And  the  grower  who  at  a  critical  time 
studies  the  individual  needs  of  his  plants  most  closely,  and 
anticipates  the  wants,  will  come  nearest  to  perfection  in  the 
difficult  task  of  providing  a  suitable  home  within  four  walls  for 
plants  found  growing  naturally  many  hundreds  of  miles  apart 
lunder  greatly  varying  conditions. — H.  R.  R. 
