﻿f 
  

  

  I08 
  BOTANICAL 
  GAZETTE. 
  [ 
  jM^'l}'* 
  

  

  commonly 
  called 
  Job's 
  tears. 
  Here 
  the 
  female 
  is 
  at 
  the 
  base 
  

   of 
  the 
  spike, 
  enclosed 
  in 
  the 
  globular 
  envelope, 
  which 
  not 
  

   only 
  contains 
  the 
  female 
  flower, 
  but 
  through 
  which 
  also 
  

   passes 
  the 
  rhachis, 
  which 
  emerges 
  at 
  the 
  apical 
  opening 
  

   with 
  the 
  styles, 
  and 
  is 
  continued 
  above 
  giving 
  rise 
  to 
  the 
  

   male 
  flowers. 
  The 
  bony 
  covering 
  is 
  probably 
  an 
  indurated 
  

   bract. 
  But 
  in 
  this 
  case 
  all 
  the 
  usual 
  envelopes 
  of 
  the 
  flower 
  

   are 
  present. 
  Another 
  example 
  is 
  the 
  Euchla^na 
  luxurians 
  or 
  

   Teosinte, 
  in 
  which 
  the 
  female 
  flowers 
  are 
  almost 
  completely 
  

   enclosed 
  in 
  indurated 
  excavations 
  of 
  the 
  rhachis 
  ; 
  but 
  here 
  also 
  

   the 
  accessory 
  organs 
  of 
  the 
  flower 
  are 
  present. 
  The 
  case 
  of 
  

   Tripsacum 
  dactyloides 
  is 
  very 
  similar. 
  If 
  we 
  could 
  consider 
  

   Coix 
  as 
  dioecious, 
  or 
  with 
  separate 
  spikes 
  for 
  the 
  two 
  sexes, 
  

   we 
  might 
  have 
  some 
  analogy, 
  but 
  probably 
  more 
  analogy, 
  if 
  

   we 
  could 
  separate 
  the 
  sexes 
  in 
  Tripsacum 
  and 
  Euchht-na. 
  

  

  I 
  sent 
  specimens 
  of 
  this 
  grass 
  to 
  Prof. 
  Hackel, 
  of 
  Austria, 
  

   and 
  in 
  a 
  letter 
  to 
  me 
  he 
  states 
  that 
  it 
  belongs 
  to 
  the 
  genus 
  

   youv 
  ea 
  Fourn. 
  This 
  genus 
  is 
  described 
  by 
  Fournier 
  from 
  

   a 
  female 
  plant 
  or 
  plants 
  collected 
  on 
  the 
  sea 
  coast 
  of 
  INTexico, 
  

   by 
  whom 
  I 
  know 
  not. 
  I 
  have 
  not 
  been 
  able 
  to 
  get 
  access 
  to 
  

   the 
  original 
  published 
  description 
  which 
  was 
  made 
  in 
  the 
  

   Bulletin 
  of 
  the 
  Belgian 
  Botanic 
  Society, 
  vol. 
  15. 
  

  

  Mr. 
  Bentham 
  in 
  the 
  Genera 
  Plantarum 
  admits 
  this 
  genus 
  

   Jouvea 
  with 
  a 
  query, 
  and 
  states 
  that 
  he 
  had 
  not 
  seen 
  the 
  

   plant. 
  It 
  was 
  considered 
  by 
  Bentham 
  to 
  be 
  related 
  to 
  Buch- 
  

   loe 
  and 
  Opizia. 
  

  

  In 
  Buchloe 
  the 
  outer 
  glumes 
  of 
  the 
  female 
  spikelets 
  are 
  

   much 
  indurated 
  and 
  closely 
  enfold 
  the 
  flower, 
  which 
  how- 
  

   ever 
  has 
  the 
  usual 
  accessory 
  parts. 
  I 
  can 
  see 
  no 
  relation- 
  

   ship 
  with 
  the 
  new 
  grass. 
  Prof. 
  Hackel, 
  however, 
  places 
  

  

  J 
  

  

  ma 
  R. 
  & 
  S., 
  which 
  genus 
  by 
  Bentham 
  is 
  united 
  with 
  Leftn- 
  

   rus 
  Br. 
  ^ 
  It 
  is 
  at 
  least 
  closely 
  related, 
  and 
  has 
  hermaphrodite 
  

   flowers, 
  inserted 
  in 
  deep 
  excavations 
  on 
  alternate 
  sides 
  of 
  the 
  

   rhachis 
  or 
  spike. 
  In 
  Jouvea, 
  with 
  which 
  Mr. 
  Hackel 
  com- 
  

   pares 
  Monerma, 
  the 
  female 
  plant 
  is 
  said 
  to 
  have 
  the 
  usual 
  

   number 
  of 
  glumes 
  in 
  each 
  spikelet, 
  and 
  the 
  spikelets 
  to 
  be 
  

   immersed 
  halfway 
  in 
  an 
  excavation 
  of 
  the 
  rhachis, 
  the 
  outer 
  

   glume 
  bemg 
  cartilaginous 
  and 
  adnate 
  for 
  the 
  half 
  part 
  to 
  the 
  

   rhachis. 
  With 
  the 
  information 
  at 
  present 
  at 
  my 
  command 
  I 
  

   do 
  not 
  see 
  any 
  relationship 
  between 
  this 
  grass 
  and 
  the 
  group 
  

   in 
  which 
  It 
  is 
  placed 
  by 
  Prof. 
  Hackel. 
  

  

  In 
  Jouvea, 
  as 
  described 
  by 
  Fournier, 
  the 
  female 
  plant 
  has 
  

   a 
  rush-hke 
  habit, 
  with 
  short, 
  acute, 
  pungent 
  leaves, 
  and 
  a 
  

  

  