J  Am,  Jour.  Pharm. ) 
Dec,  1881.  .] 
Jiubus  Vdlosns-. 
595 
HUBUS  AaLLOSUS. 
By  Chester  Johnson,  Ph.G. 
From  an  Inaugural  Essay. 
This  plant  belongs  to  the  natural  order  of  Rosace^e^  and,  though 
considered  to  be  of  little  importance  medicinally,  it  presents  many 
characteristics  which  cannot  fail  to  be  deeply  interesting  to  the  bota- 
nical student  It  is  an  upright,  shrubby  perennial,  growing  in  rough 
pasture  lands  and  thickets,  throughout  the  eastern  part  of  the  United 
States  from  Maine  to  South  Carolina,  and  it  is  universally  known  as 
High  Blachberry. 
Its  flowers,  consist- 
ing of  five  white  round- 
ed petals  and  numerous 
stamens,  occur  upon  the 
irregularly  branched 
stem  in  more  or  less 
elongated  racemes,  and 
produce  a  blaclv  multi- 
ple fruit,  which  ripens 
in  August  or  Septem- 
ber. The  stem  is  lon- 
gitudinally ridged,  and 
armed  with  stout  down- 
ward curved  prickles. 
The  leaves  are  slight- 
ly  pubescent  beneath, 
alternate  and  of  a  dark-  Transverse  section,  magnified  150  diameters, 
ish  green  color ;  their  general  shape  is  ovate,  with  an  acute  apex  and 
an  unequally  serrate  margin.  The  [prickles  grow  along,  the  mid- 
rib and  down  the  petiole,  which  is  nearly  the  length  of  tiie  leaf.  All 
intermediate  gradations  are  found  between  the  singk  and  the  com- 
pound leaf  of  five  leaflets,  the  five-divided  being  produced  from  the 
three-divided  by  lobes  appearing  upon  the  base,  and  becoming  more 
deeply  incised,  so  as  to  form  a  new  set  of  leaflets. 
The  root  varies  from  the  one-eighth  of  an  inch  in  diameter  to  the 
■.thickness  of  the  little  finger,  and  contains  a  tough,  ligneous  meditul- 
liura.    The  bark,  in  which  the  virtues  wholly  reside,  is  of  a  gray-. 
