﻿APR. 
  19, 
  1922 
  HITCHCOCK: 
  PERENNIAL 
  SPECIES 
  OF 
  TEOSINTE 
  205 
  

  

  foHosus 
  than 
  an 
  Acanthospermum." 
  T 
  have 
  not 
  been 
  able 
  to 
  verify 
  his 
  state- 
  

   ment 
  that 
  some 
  of 
  the 
  material 
  from 
  Gardner-near-Hood 
  Island 
  (A. 
  hrachy- 
  

   ceratum) 
  has 
  "some 
  of 
  the 
  leaves 
  deeply 
  cut, 
  as 
  do 
  the 
  specimens 
  from 
  Chat- 
  

   ham 
  Island." 
  

  

  In 
  this 
  species 
  the 
  slender 
  stem 
  is 
  so 
  woody 
  that 
  I 
  was 
  inclined 
  to 
  consider 
  

   it 
  frutescent, 
  until 
  a 
  specimen 
  was 
  found 
  among 
  the 
  unmounted 
  material 
  

   collected 
  by 
  Stewart 
  which 
  showed 
  clearly 
  that 
  the 
  plant 
  was 
  an 
  annual. 
  

  

  In 
  conclusion, 
  it 
  may 
  be 
  well 
  to 
  mention 
  that 
  the 
  data 
  for 
  the 
  specimens 
  

   collected 
  by 
  Mr. 
  Stewart 
  on 
  the 
  1905-06 
  Galapagos 
  Expedition 
  of 
  the 
  Cali- 
  

   fornia 
  Academy 
  are 
  in 
  an 
  unfortunate 
  state 
  of 
  confusion. 
  The 
  33 
  unmounted 
  

   sheets 
  of 
  A. 
  lepiolobum, 
  for 
  example, 
  are 
  not 
  accompanied 
  by 
  data, 
  but 
  they 
  

   are 
  so 
  clearly 
  identical 
  in 
  every 
  feature 
  with 
  his 
  no. 
  700 
  as 
  represented 
  in 
  the 
  

   Gray 
  Herbarium 
  and 
  the 
  herbarium 
  of 
  the 
  California 
  Academy 
  of 
  Sciences 
  

   that 
  I 
  have 
  no 
  hesitation 
  in 
  considering 
  them 
  a 
  portion 
  of 
  the 
  same 
  collection. 
  

  

  BOTANY. 
  — 
  A 
  perennial 
  species 
  of 
  teosinte^ 
  A. 
  S. 
  Hitchcock, 
  

   Bureau 
  of 
  Plant 
  Industry. 
  

  

  In 
  a 
  recent 
  article^ 
  entitled 
  Teosinte 
  in 
  Mexico, 
  Mr. 
  G. 
  N. 
  Collins 
  

   reviews 
  our 
  knowledge 
  concerning 
  teosinte 
  in 
  Mexico. 
  Up 
  to 
  the 
  

   present 
  all 
  the 
  forms 
  of 
  teosinte 
  have 
  been 
  referred 
  to 
  one 
  species, 
  

   Etichlaena 
  mexicana 
  Scbrad. 
  There 
  are 
  two 
  forms 
  of 
  this, 
  both 
  annual, 
  

   one 
  from 
  Durango, 
  where 
  it 
  was 
  collected 
  by 
  Dr. 
  Edward 
  Palmer, 
  and 
  

   one 
  grown 
  in 
  Florida, 
  the 
  origin 
  of 
  which 
  is 
  uncertain. 
  The 
  latter 
  form 
  

   hasbeen 
  grown 
  in 
  France 
  and 
  mayhavecome 
  originally 
  from 
  Guatemala. 
  

   At 
  present 
  the 
  only 
  known 
  localities 
  for 
  the 
  annual 
  teosinte 
  in 
  the 
  wild 
  

   state 
  are 
  Durango 
  and 
  the 
  State 
  of 
  Mexico 
  near 
  Chalco, 
  where 
  it 
  was 
  

   recently 
  collected 
  by 
  Collins. 
  The 
  origin 
  of 
  the 
  specimens 
  described 
  

   by 
  European 
  botanists 
  is 
  unkown. 
  

  

  The 
  botanical 
  history 
  of 
  the 
  annual 
  species 
  is 
  as 
  follows: 
  

  

  Euchlaena 
  mexicana 
  vSchrad. 
  Ind. 
  Sem. 
  Hort. 
  Goettingen. 
  1832 
  ; 
  reprinted 
  in 
  

   Linnaea 
  8 
  : 
  Litt. 
  25. 
  1833. 
  I 
  have 
  not 
  seen 
  the 
  original 
  publication, 
  an 
  ephem- 
  

   eral 
  seed 
  list, 
  but 
  fortunately 
  the 
  reprint 
  is 
  accessible. 
  Schrader 
  describes 
  the 
  

   genus 
  and 
  species 
  together, 
  "Euchlaena 
  mexicana 
  Schrad. 
  Nov. 
  Gen. 
  e 
  Gra- 
  

   minearum 
  Olyrearum 
  tribu," 
  and 
  so 
  on. 
  He 
  describes 
  the 
  staminate 
  spike- 
  

   lets 
  as 
  1 
  -flowered 
  instead 
  of 
  2-flowered 
  and 
  the 
  genus 
  is 
  placed 
  with 
  the 
  Olyra 
  

   group. 
  As 
  to 
  locality 
  he 
  says, 
  "Mexico, 
  Dr. 
  Miihlenfordt." 
  Nothing 
  

   further 
  concerning 
  the 
  history 
  of 
  this 
  is 
  known. 
  

  

  Reana 
  giovanninii 
  Brign. 
  Ind. 
  Sem. 
  Hort. 
  Mutin. 
  1849. 
  The 
  publication 
  

   cited 
  is 
  also 
  an 
  ephemeral 
  seed 
  list 
  which 
  I 
  saw 
  at 
  the 
  Botanical 
  Garden 
  of 
  

  

  1 
  Received 
  March 
  20, 
  1922. 
  

   - 
  Journ. 
  Hered. 
  12: 
  3.39. 
  1922. 
  

  

  