Am,  Jour.  Pharm.  \ 
August,  1883.  J 
Gleanings  in  Materia  Medica, 
421 
Fig.  5. 
in  small  racemes.  The  outer  involucral  scales  resemble  the  leaves,  the 
inner  ones  are  broader,  ovate,  three-cleft,  membranous  and  loug-ciliate. 
The  receptacle  is  flat,  long-villose,  and  bears  a  small  number  of  yelhtw 
tubular  florets. 
The  hairs  are  quite  characteristic,  T-shaped ;  the  basal  cell  projects 
somewhat  above  the  dense  cuticle,  and  is  surmounted  by  two  thin- 
walled  stipitate  cells  and  a  terminal  cell  which  is  forked,  thick-walled, 
and  shows  an  internal  cavity  only  at  the  fork.  The  hairs  are  colored 
faintly  yellow  by  aniline  sulphate.  The  author  doubts  the  identity  of 
the  plant  with  Artemisia  frigida,  WilldenoWy  which  is  indigenous  to 
Siberia. — Phar.  Centralhalle,  No.  17. 
Phoradendron  flavescens,  Nuttall,  mistletoe. — The  drug  consisting 
of  dried  stems,  leaves  and  flowers,  has  been  examined  by  J.  Moeller. 
The  stem  fragments  a  are  of  the  thickness  of  a  quill  and  about  the 
length  of  a  finger,  varying  in  color  between  gamboge-yellow  and 
blackish  brown,  wrinkled  and  with  opposite  leafscars.  The  cuticle  is 
thick,  on  the  youngest  branches  beset 
with  short  conical  thickened  hairs, 
frequently  in  pairs ;  the  bark  is  rela- 
tively thick,  contains  groups  of  stone 
cells  and  lighter  colored  bast  bun- 
dles arranged  in  a  circle,  and  is  free 
from  starch ;  the  wood  contains  starch 
in  the  pith,  in  the  medullary  rays 
and  in  the  scattered  wood  paren- 
chyma cells.  The  leaves  are  smooth, 
when  full  grown,  oblong  or  roundish 
elliptic,  about  6  cm.  long,  sometimes 
spatulate,  short  petiolate,  leathery, 
with  the  margin  entire,  the  upper 
surface  finely  wrinkled  and  without 
visible  nervation,  the  lower  surface 
distinctly  three  nerved  and  the  nerves  sparingly  branched.  The  cuticle 
is  thick ;  the  epidermis  consists  of  polygonal  cells,  and  has  on  the 
lower  surfiice  numerous  stomata ;  there  is  no  distinct  palissade  layer, 
the  mesophyll  consisting  of  thin  walled,  loosely  united  cells  with  a 
Phoradendron  flavescens,  Xuttall. 
a  stem,  6  leaf,  c  pistillate  spike. 
few  intercellular 
spaces. 
and 
containing 
tannin,  mostly  also  yellow 
resin,  and  in  scattered  cells  near  the  fibrovascular  bundles,  also  crystal- 
line groups  of  calcium  oxalate. 
