22 
The  Anatomy  of  Edible  Berries. 
Am.  Jour.  Pharm. 
January,  1905. 
Floral  Parts  {Fig.  23). — The  remains  of  the  floral  parts  are  usually 
deep  brown,  and  can  be  studied  to  advantage  only  after  bleaching, 
preferably  with  sodium  hypochlorite,  and  staining.  A  prominent 
mid-vein  runs  from  the  base  almost  to  the  summit  of  each  of  the 
calyx  and  corolla  lobes.  About  four  secondary  veins  branching  near 
the  base,  partly  from  the  calyx  midrib,  partly  from  the  corolla  mid- 
rib, also  run  through  nearly  the  length  of  the  calyx  lobes.  Lateral 
branches  from  the  midrib  are  numerous  in  the  corolla,  less  so  in  the 
calyx. 
The  epidermal  cells  of  the  calyx  are  for  the  most  part  slightly 
elongated,  and  are  arranged  end  to  end  in  longitudinal  rows.  Near 
the  ends  of  the  lobes  they  have  wavy  outlines.  The  outer  surface  of 
the  calyx  and  the  upper  part  of  the  inner  surface  bear  only  a  few 
scattering  hairs.  The  calyx  throat,  however,  is  densely  pubescent. 
These  hairs  are  all  thin-walled,  and  vary  in  length  up  to  1  milli- 
meter or  more,  the  longest  being  in  the  calyx  throat  {Figs.  24. 
and  25). 
The  deeply  parted  styles  are  covered  with  epidermal  cells,  for  the 
most  part  quadrilateral,  and  arranged  end  to  end  in  rows,  and  on 
the  lower  half  bear  numerous  thin- walled  hairs  1  millimeter  or  more 
in  length. 
Microscopic  Examination  of  Gooseberry  Preserves. — The  epidermis, 
mesocarp  and  seed  have  the  same  structure  as  the  corresponding 
parts  of  the  currant,  but  the  endocarp  is  not  sclerenchymatized  as 
in  the  latter  fruit  and  is  not  evident  in  preserves.  The  floral  parts 
are  of  about  the  same  length  as  in  the  black  currant  (6  millimeters) 
Fig.  23. — Gooseberry.  Floral  parts. 
X  5. 
Fig.  24. — Gooseberry.  Epi- 
dermis from  margin  of  calyx, 
with  hairs.    X  160. 
