﻿OCTOBER 
  1 
  TO 
  DECEMBER 
  31, 
  1911. 
  19 
  

  

  "The 
  Socotra 
  olibanum 
  flowers 
  in 
  April 
  and 
  the 
  gum 
  is 
  collected 
  any 
  time 
  after 
  

   May, 
  which 
  is 
  the 
  beginning 
  of 
  the 
  wet 
  season. 
  It 
  is 
  usually 
  collected, 
  however, 
  

   during 
  June, 
  July, 
  and 
  August. 
  The 
  Socotran 
  merely 
  goes 
  among 
  the 
  wild 
  trees, 
  

   giving 
  each 
  about 
  a 
  dozen 
  deep, 
  oblique 
  slashes, 
  2 
  or 
  3 
  inches 
  long, 
  which 
  he 
  tears 
  

   open 
  into 
  a 
  kind 
  of 
  pocket 
  at 
  the 
  lower 
  end 
  with 
  a 
  wrench 
  of 
  his 
  knife. 
  The 
  tree 
  is 
  

   then 
  left 
  to 
  deposit 
  its 
  sap 
  in 
  these 
  pockets 
  for 
  three 
  weeks 
  or 
  a 
  month, 
  at 
  the 
  end 
  of 
  

   which 
  time 
  the 
  collector 
  comes 
  with 
  his 
  knife 
  and 
  basket 
  and 
  cuts 
  the 
  collected 
  

   nodules 
  'or 
  tears' 
  away 
  with 
  pieces 
  of 
  bark. 
  He 
  then 
  either 
  makes 
  new 
  cuts 
  or 
  

   deepens 
  the 
  old 
  ones 
  and 
  again 
  awaits 
  the 
  harvest 
  in 
  another 
  three 
  or 
  four 
  weeks. 
  

   The 
  process 
  is 
  repeated 
  until 
  September. 
  The 
  lu-ban, 
  which 
  overflows 
  the 
  wound 
  and 
  

   runs 
  down 
  the 
  tree, 
  is 
  regarded 
  as 
  of 
  less 
  value 
  than 
  that 
  which 
  remains 
  in 
  the 
  pockets. 
  

   A 
  Socotran 
  average 
  tree 
  is 
  said 
  to 
  yield 
  from 
  1 
  to 
  5 
  pounds 
  of 
  lu-ban 
  per 
  season, 
  while 
  

   the 
  yield 
  in 
  Somali 
  is 
  much 
  larger. 
  Its 
  value 
  in 
  the 
  island 
  is 
  simply 
  anything 
  which 
  

   the 
  collector, 
  who 
  has 
  little 
  use 
  for 
  money, 
  can 
  persuade 
  the 
  Arab 
  trader 
  to 
  give 
  him 
  

   for 
  it 
  in 
  rice, 
  goats, 
  or 
  cotton 
  shirting. 
  In 
  Aden 
  it 
  is 
  worth 
  from 
  6 
  to 
  12 
  cents 
  per 
  

   pound, 
  according 
  to 
  quality, 
  while 
  the 
  Somali 
  lu-ban 
  is 
  worth 
  from 
  10 
  to 
  24 
  cents 
  per 
  

   pound 
  . 
  

  

  " 
  I 
  must 
  add 
  that 
  we 
  found 
  the 
  olibanum 
  growing 
  only 
  on 
  the 
  inside, 
  protected 
  

   slopes 
  of 
  the 
  mountain, 
  that 
  its 
  range 
  seemed 
  to 
  be 
  from 
  2,000 
  to 
  4,000 
  feet, 
  and 
  that 
  

   while 
  we 
  only 
  saw 
  it 
  in 
  a 
  red 
  granite 
  soil, 
  we 
  were 
  told 
  that 
  it 
  grew 
  equally 
  well 
  out 
  

   of 
  fissures 
  in 
  the 
  limestone 
  heights 
  above 
  us. 
  The 
  climate 
  of 
  Socotra 
  is, 
  of 
  course, 
  

   very 
  dry 
  and 
  not 
  so 
  hot 
  as 
  Arabia. 
  We 
  found 
  the 
  earth 
  exceedingly 
  dry, 
  and 
  were 
  

   informed 
  that 
  rain 
  never 
  falls 
  in 
  the 
  Haghier 
  Hills 
  except 
  during 
  the 
  rainy 
  months 
  

   from 
  May 
  to 
  August 
  or 
  September. 
  

  

  11 
  There 
  is 
  no 
  cleaning 
  of 
  the 
  collected 
  lu-ban, 
  but 
  as 
  soon 
  as 
  it 
  hardens 
  a 
  little 
  after 
  

   being 
  cut 
  from 
  the 
  trees 
  it 
  is 
  ready 
  for 
  market. 
  ' 
  ' 
  ( 
  Moser.) 
  

  

  "The 
  frankincense 
  tree 
  is 
  supposed 
  to 
  have 
  been 
  the 
  tree 
  which 
  furnished 
  the 
  

   frankincense 
  of 
  the 
  ancients, 
  and 
  the 
  hardened 
  drops 
  of 
  gum 
  are 
  now 
  used 
  very 
  

   extensively 
  in 
  Roman 
  Catholic 
  churches 
  as 
  incense, 
  being 
  burned 
  in 
  the 
  censers. 
  The 
  

   tree 
  will 
  probably 
  thrive 
  only 
  in 
  the 
  dry, 
  almost 
  frostless, 
  areas 
  of 
  the 
  Southwest." 
  

   {Fair 
  child.) 
  

  

  32020. 
  Citrus 
  limetta 
  Kisso. 
  Lime. 
  

  

  From 
  Burringbar, 
  New 
  South 
  Wales, 
  Australia. 
  Presented 
  by 
  Mr. 
  B. 
  Harrison, 
  

   Burringbar. 
  Received 
  July 
  31, 
  1911. 
  Numbered 
  October 
  15, 
  1911. 
  

   Seeds. 
  

  

  32021. 
  Stizolobium 
  cinereum 
  Piper 
  and 
  Tracy. 
  

  

  From 
  Amani, 
  German 
  East 
  Africa. 
  Presented 
  by 
  Dr. 
  A. 
  Zimmermann, 
  director, 
  

   Biologisch 
  Landwirtschaftliches 
  Institut, 
  Amani. 
  Received 
  October 
  25, 
  1911. 
  

  

  32022 
  to 
  32025. 
  Statice 
  spp. 
  

  

  From 
  Canary 
  Islands. 
  Presented 
  by 
  Dr. 
  George 
  V. 
  Perez, 
  Puerto 
  Orotava, 
  Tene- 
  

   riffe. 
  Received 
  October 
  5, 
  1911. 
  

   Seeds 
  of 
  the 
  following; 
  quoted 
  notes 
  by 
  Dr. 
  Perez: 
  

  

  32022. 
  Statice 
  arborea 
  Brouss. 
  

  

  Variety 
  frutescens. 
  "Native 
  of 
  Teneriffe. 
  Botanically 
  this 
  is 
  a 
  dwarf 
  form 
  

   of 
  arborea. 
  " 
  

  

  32023. 
  Statice 
  macroptera 
  Webb 
  and 
  Berth. 
  

   " 
  Native 
  of 
  the 
  island 
  of 
  Hierro. 
  " 
  

  

  32024. 
  Statice 
  perezii 
  Stapf. 
  

  

  "Native 
  of 
  Teneriffe. 
  Newly 
  discovered 
  species." 
  

  

  32025. 
  Statice 
  puberula 
  Webb. 
  

  

  " 
  Gathered 
  wild 
  at 
  Famara, 
  Lanzarote. 
  This 
  seed 
  keeps 
  2 
  or 
  3 
  years. 
  " 
  

   261 
  

  

  