506 
Rhus  Michauxii. 
(  Am.  Jour.  Pharm. 
\  November,  1910. 
exceedingly  active,  and  have  a  powerful  influence  on  persons  unsus- 
ceptible to  the  action  of  the  R.  toxicodendron." 
Porcher,  1849,  Trans.  Am.  Med.  Assn.,  (2)  746.    "  According  to  Pursh,  it  is 
the  most  poisonous  of  the  species." 
Clapp,  1852,  Trans.  Am.  Med.  Assn.,  (5)  754.    Quotes  Pursh  as  to  poisonous 
properties  and  states  further,  ".    .    .    not  known  to  be  used  in  medicine, 
though  it  and  the  venenata  are  supposed  to  possess  medical  properties 
similar  to  those  of  the  R.  toxicodendron," 
Darby,  1857,  Bot.  South.  States,  (2)  254.    Enumerates  R.  pumila  among  the 
venomous  species.    "  Fruit  clothed  with  a  red  silky  pubescence.    Said  to 
be  very  poisonous." 
Stearns,  1858,  Am.  Pharm.  Assn.  Proc,  (7)  276.    States  (incorrectly)  that 
R.  pumila  is  found  throughout  Michigan.     Gives  "Poison  Ash"  as  a 
synonym. 
Porcher,  1863,  Resour.  South.  Fields  &  For.,  208.    Records  Pursh's  assertion 
concerning  the  poisonous  properties  of  R.  pumilum. 
Curtis,  1867,  Geolog.  &  Nat.  Hist.  Surv.  N.  Car.,  (3)  15.    Found  in  the  lower 
and  middle  districts  of  North  Carolina. 
Paxton,  1868,  Bot.  Diet.,  483.    Enumerates  the  known  species  of  Rhus,  but 
makes  no  statement  concerning  the  venomous  properties  of  R.  pumila. 
Watson,  1878,  Bib.  Index  N.  Am.  Bot.,  183.    Botanical  references. 
Burgess,  1880,  Can.  Jour.  Med.  Sci.,  (5)  329.    ".    .    .    said  to  be  the  most 
poisonous  of  the  Eastern  varieties." 
Hale,  1883,  Woods  &  Timb.  N.  Car.,  151.    Description  of  R.  pumila,  written 
by  M.  A.  Curtis.    See  Curtis,  this  Bibliography. 
Johnson,  1884,  Man.  Med.  Bot.  N.  Am.,  120.   "  Rhus  pumila  is  said  to  be  the 
most  poisonous  of  the  group.    .    .  ." 
Patterson,  1887,  Check-List  N.  Am.  PL,  27. 
Willis,  1889,  joint  author;  see  Wood. 
Wood  and  Willis,  1889,  Am.  Bot.  &  Flor.,  73.    List  R.  pumila. 
Millspaugh,  1892,  Medic.  PI.,  (1)  36-2.  "Our  southern  R.  pumila,  Michx., 
has  been  variously  considered ;  some  writers  claiming  it  to  be  entirely 
innocuous,  others  judge  it  to  be  the  most  poisonous  of  the  North  Amer- 
ican species,  claiming  that  it  will  show  its  effects  upon  those  who  are  not 
susceptible  to  the  influence  of  R.  toxicodendron." 
Sargent,  1895,  Gard.  &  For.,  (8)  404.  Botanical  review.  Renames  the  species, 
calling  it  "  Rhus  Michauxii "  Refers  to  the  reports  of  Boikin,  LeConte, 
and  Boynton,  which  are  not  given  in  this  Bibliography. 
Chapman,  1897,  Flor.  South.  U.  S.,  72.    R.  pumila  is  listed  as  non-poisonous. 
Gray  and  Robinson,  1897,  Syn.  Flor.  N.  Am.,  (1)  384.    R.  pumila  listed. 
Robinson,  1897,  joint  author:  see  Gray. 
Draggendorff,  1898,  Heilpfl.  Volk.  Zeit.,  400.  Many  species  of  Rhus,  including 
R.  pumila,  are  mentioned. 
Heller,  1900,  Cat.  N.  Am.  PL,  129.   R.  Michauxii  is  listed. 
Loundsberry,  1901,  South.  Wild  Fl.  &  Trees,  306.  "  Famous  among  them  all 
is  R.  Michauxii  which  for  nearly  or  quite  a  hundred  years  was  com- 
pletely lost  to  the  world  of  science.    It  is  but  a  few  years  ago  that  it  was 
