422       PRESENT  STATE  OF  OUR  KNOWLEDGE  OF  CINCHONA. 
ney  in  Bolivia,  new  forms  intermediate  between  the  C.  Calisaya 
and  the  C.  Boliviano,,  this  able  botanist  is  disposed  to  regard  the 
morada  as  a  simple  variety  of  the  Calisaya.  This  agrees  with 
what  we  know  of  the  different  barks,  which  are  all,  including  the 
Boliviana,  equally  collected  and  imported  as  Calisaya.  The  bark 
of  the  Calisaya  morada  is  never  classed  separately  in  commerce, 
and,  indeed,  it  appears  in  Delondre  and  Bouchardat's  well-exe- 
cuted plate  i.  as  typical  Calisaya ;  while,  on  the  other  hand,  we 
find  another  well-marked  variety,  the  Calisaya  blanca,  equally 
well  figured  by  Goebel  in  his  Pharm.  Waarenkunde,  plate  vii., 
as  also  China  Calisaya.  Best  executed  and  most  characteristic 
of  all,  are  Weddell's  own  figures  of  the  bark,  both  of  his  a.  vera 
and  §.  Josephiana.  As  far  as  the  writer  can  judge,  it  is  yet 
another  variety  which  is  now  growing  with  him,  the  Calisaya 
verde,  of  which,  as  well  as  of  the  naranjada  fina,  zambita,  empe- 
dernida,  and  one  or  two  others,  Dr.  Weddell  gave  him  specimens 
resulting  from  his  second  excursion  to  Bolivia. 
For  further  information  respecting  this  variety,  the  Calisaya 
verde,  we  must  (for  the  present)  turn  to  the  Report  by  Mr.  Mark- 
ham  of  his  visit  to  collect  plants  of  the  Cinchona?  in  1860.  He 
says,*  "  The  bark  collectors  and  other  natives  assured  me  that 
there  are  three  kinds  of  Calisayas,  namely,  the  Calisaya  amarilla 
oy  fina  (a.  vera  of  Weddell),  the  Calisaya  morada  (0.  Boliviana 
of  Weddell),  and  the  Calisaya  verde  or  alta, — not  mentioned,  as 
far  as  I  am  aware,  by  any  author.  They  say  that  the  latter  is 
a  very  large  tree,  generally  growing  very  far  down  the  valleys,  and 
in  much  lower  situations  than  the  other  varieties.  The  veins  of 
the  leaves  are  never  purple,  but  always  a  pale  green,  hence  the 
name.  The  guide  Martinez  had  cut  a  tree  of  this  variety,  yield- 
ing six  or  seven  cwt.  of  bark,  including  canuto  or  bark  from  the 
branches ;  and  Gironda  had  seen  a  tree  in  the  province  of  Mu- 
necas,  in  Bolivia,  which  yielded  ten  cwt.  of  tabla,  or  trunk  bark 
alone.  The  true  Calisaya  of  Weddell  only  yields  three  or  four 
cwt." 
Such  a  tree  as  Gironda  describes  might  probably  be  five  feet 
in  diameter,  for  Karsten,  speaking  of  the  C.  lancifolia  and  C. 
corymbosa,  says,f  "trees  are  met  with  sixty  feet  in  height, 
*  Letter  to  the  Under-Secretary  for  State,  June  9,  1860.    See  44. 
f  Med.  Chinarinden,  p.  28. 
