﻿328 
  JOURNAL 
  OF 
  THE 
  WASHINGTON 
  ACADEMY 
  OF 
  SCIENCES 
  VOL. 
  12, 
  NO. 
  14 
  

  

  Measurements. 
  — 
  Males 
  (4 
  specimens), 
  wing 
  65.6-66.6 
  (66.0), 
  tail 
  56.1- 
  

   60.6 
  (58.6), 
  exposed 
  culmen 
  16.7-17.7 
  (17.1), 
  ^^ 
  tarsus 
  31.9-33.6 
  (32.6) 
  mm. 
  

   Females 
  (3 
  specimens), 
  wing 
  61.3-67.4 
  (63.9), 
  tail 
  57.5-60.4 
  (59.2), 
  exposed 
  

   culmen 
  16.4-17.2 
  (16.7), 
  tarsus 
  31.5-32.0 
  (31.7) 
  mm. 
  Type 
  (adult 
  male) 
  

   wing 
  66.6, 
  tail 
  60.0, 
  exposed 
  culmen 
  17.7, 
  tarsus 
  31.9 
  mm. 
  

  

  Range. 
  — 
  Formosa 
  (Riacho 
  Pilaga), 
  Rio 
  Vermejo, 
  and 
  eastern 
  Salta 
  (?) 
  

   Argentina. 
  

  

  Remarks. 
  — 
  The 
  material 
  on 
  which 
  the 
  form 
  described 
  above 
  is 
  based 
  has 
  

   been 
  compared 
  with 
  two 
  specimens 
  (male 
  and 
  female) 
  from 
  Bahia, 
  the 
  type 
  

   locality 
  of 
  Myiothera 
  strigilata 
  of 
  Wied. 
  The 
  male 
  of 
  M. 
  s. 
  strigilatus 
  has 
  

   the 
  white 
  superciliary 
  prolonged 
  to 
  terminate 
  in 
  a 
  prominent 
  white 
  spot 
  

   on 
  the 
  side 
  of 
  the 
  head, 
  and 
  the 
  feathers 
  behind 
  the 
  eye 
  (above 
  the 
  auricular 
  

   region) 
  almost 
  black. 
  In 
  addition 
  the 
  sides, 
  flanks 
  and 
  under 
  tail-coverts 
  

   are 
  white 
  with 
  very 
  little 
  buffy 
  tinge. 
  The 
  female 
  of 
  typical 
  strigilatus 
  

   is 
  whiter 
  on 
  the 
  sides, 
  flanks 
  and 
  under 
  tail-coverts, 
  has 
  the 
  superciliary 
  stripe 
  

   whiter 
  and 
  more 
  prominent, 
  and 
  the 
  side 
  of 
  the 
  head 
  paler. 
  Measurements 
  

   (in 
  millimeters) 
  of 
  the 
  two 
  skins 
  from 
  Bahia 
  are 
  as 
  follows: 
  male, 
  wing 
  64.5, 
  

   tail 
  57.0, 
  exposed 
  culmen 
  15.5, 
  tarsus 
  30.5; 
  female, 
  wing 
  61.0, 
  tail 
  52.2, 
  ex- 
  

   posed 
  culmen 
  14.0, 
  tarsus 
  29.3. 
  It 
  will 
  be 
  noted 
  that 
  in 
  suspicax 
  the 
  bill 
  

   and 
  tarsus 
  seem 
  to 
  average 
  slightly 
  longer 
  than 
  in 
  typical 
  strigilatus. 
  

  

  In 
  addition 
  to 
  seven 
  specimens 
  taken 
  by 
  the 
  writer 
  at 
  the 
  type 
  locality, 
  

   there 
  is 
  a 
  skin 
  in 
  the 
  National 
  Museum 
  secured 
  by 
  Page 
  on 
  the 
  Rio 
  Vermejo, 
  

   apparently 
  the 
  most 
  southern 
  point 
  from 
  which 
  the 
  bird 
  is 
  recorded, 
  since 
  

   in 
  Argentina 
  published 
  records 
  indicate 
  it 
  as 
  known 
  only 
  from 
  eastern 
  Salta. 
  

   No 
  specimens 
  have 
  been 
  seen 
  from 
  the 
  latter 
  locality. 
  

  

  BOTANY. 
  — 
  The 
  two 
  species 
  of 
  deerhorn 
  cactus.'^ 
  N. 
  L. 
  Britton 
  

  

  and 
  J. 
  N. 
  Rose. 
  

  

  In 
  our 
  southwestern 
  deserts, 
  ranging 
  from 
  western 
  Texas 
  to 
  south- 
  

   eastern 
  Arizona 
  and 
  extending 
  into 
  northern 
  Mexico, 
  just 
  how 
  far 
  

   we 
  do 
  not 
  know, 
  the 
  well-known 
  deerhorn 
  cactus 
  is 
  to 
  be 
  found. 
  It 
  

   is 
  never 
  abundant, 
  usually 
  growing 
  up 
  through 
  other 
  bushes 
  with 
  

   its 
  branches 
  often 
  looking 
  like 
  dead 
  sticks. 
  It 
  has 
  an 
  enormous 
  

   turnip-like 
  root, 
  sometimes 
  weighing 
  60 
  pounds. 
  When 
  in 
  flower 
  it 
  is 
  

   greatly 
  sought 
  after 
  by 
  plant-lovers. 
  It 
  is 
  a 
  night-bloomer 
  and 
  in 
  

   the 
  southwest 
  is 
  known 
  as 
  the 
  Queen 
  of 
  the 
  Night. 
  When 
  barren, 
  

   the 
  plant 
  is 
  difficult 
  to 
  find, 
  but 
  when 
  in 
  flower 
  it 
  can 
  easily 
  be 
  located 
  

   in 
  the 
  dark 
  by 
  its 
  strong 
  but 
  delightful 
  odor, 
  and 
  people 
  often 
  go 
  into 
  

   the 
  desert 
  seeking 
  it, 
  carrying 
  lanterns 
  not 
  to 
  aid 
  in 
  finding 
  the 
  flowers 
  

   but 
  only 
  to 
  guide 
  them 
  away 
  from 
  the 
  thorny 
  vegetation. 
  The 
  

   plant 
  was 
  long 
  known 
  as 
  Cereus 
  greggii, 
  having 
  been 
  so-named 
  by 
  

  

  '2 
  Average 
  of 
  three 
  specimens. 
  

   1 
  Received 
  July 
  18, 
  1922. 
  

  

  