568  Powdered  Vegetable  Drugs.  {^SS" 
296.  Pulv.  Ipecac,  et  Opii. — Crystals  of  sugar-of-milk  predomi- 
nating (see  No.  190);  also  Ipecac  (see  No.  294)  and  Opium  (see 
No.  222). 
297.  Tr.  Catechu  Comp. — Tissues,  etc.,  of  Cinnamon  (see  No. 
292)  and  Catechu  (see  No.  222). 
d.  Crystal  sand.    (May  occur  as  acicular  crystals  also.) 
298.  Belladonna  Radix. — Starch  in  single  (5— 1 5  fi)  and  2-3- 
compound  grains  ;  rather  narrow  ducts,  with  bordered  pores  ;  few 
sklerenchyma  fibres  ;  grayish-brown  resinous  masses.  Woody  Bella- 
donna has  more  numerous  ducts  and  sklerenchyma  fibres ;  Mealy  B. 
is  richest  in  starch,  and  Horny  B.  is  richest  in  grayish-brown  resi- 
nous masses. 
299.  Cinchona. — Starch  4  /jl  in  diameter,  not  very  abundant ; 
characteristic  bast-fibres  600  /i  long  by  50  /jl  wide  ;  alkaloids  can 
be  crystallized  out  sometimes  by  use  of  KOH. 
300.  Horsenettle  [Solatium  Carolinense). — Starch  occurs  in  single 
(25x35  to  10  x  20  /£)  or  2-4-compound  grains;  sklerenchyma 
and  ducts. 
301.  Phytolacca  Radix. — Acicular  crystals  30  /jl  long  or  crystal 
sand;  numerous  starch  grains  7-1 8  /jl  in  diameter;  large  ducts; 
fragments  of  cork  ;  sklerenchyma  fibres  short  and  long. 
302.  Quassia  {Surinam). — See  No.  358. 
303.  Tinct.  Cinchona  Comp. — Bast- fibres  of  Cinchona  (see  No. 
303) ;  parenchyma  of  bitter  orange  peel  (see  No.  206) ;  sklerenchyma 
of  Serpentaria  (see  No.  145). 
304.  Zingiber  [African). — See  No.  318. 
[b)  Containing  starch,  but  few  or  no  crystals  of  calcium  oxalate 
and  rather  numerous  fragments  of  tissues. 
•   a.  Possessing  oil- cells  or  secretion  reset  voir s  .*.  of  characteristic  odor. 
305.  Calamus  [unpeeled). — The  crystal  fibres  occur  only  in  outer 
portion  of  cortex,  hence  powder  may  contain  few  crystals ;  starch 
4x8  to  4x4  /jl;  ducts  and  sklerenchyma  ;  loose  parenchyma  ; 
colorless  or  slightly  yellowish  oil-secreting  cells. 
306.  Capsicum. — Starch  grains  very  small ;  peculiar  wavy  stone- 
cells  of  seed,  besides  stone-cells  of  epicarp  and  endocarp  ;  oil  con- 
taining dissolved  pigment  of  chromoplastids  ;  characteristic  secre- 
tion hairs  of  calyx ;  powder  with  H2S04  becomes  purplish  and  then 
purplish-red. 
307.  Colchici  Semen. — See  No.  326. 
