﻿684 
  Mutations 
  

  

  Leaves 
  placed 
  in 
  whorls 
  of 
  three 
  are 
  very 
  rare. 
  

   The 
  oleander, 
  juniper 
  and 
  some 
  few 
  other 
  

   plants 
  have 
  ternate 
  whorls 
  as 
  a 
  specific 
  char- 
  

   acter. 
  As 
  an 
  anomaly, 
  ternate 
  whorls 
  are 
  far 
  

   more 
  common, 
  and 
  perhaps 
  any 
  plant 
  with 
  op- 
  

   posite 
  leaves 
  may 
  from 
  time 
  to 
  time 
  produce 
  

   them. 
  Eaces 
  rich 
  in 
  this 
  abnormality 
  are 
  

   found 
  in 
  the 
  wild 
  state 
  in 
  the 
  yellow 
  loose- 
  

   strife 
  or 
  Lysimachia 
  vulgaris, 
  in 
  which 
  it 
  is 
  

   a 
  very 
  variable 
  specific 
  character, 
  the 
  whorls 
  

   varying 
  from 
  two 
  to 
  four 
  leaves. 
  In 
  the 
  

   cultivated 
  state 
  it 
  is 
  met 
  with 
  in 
  the 
  myrtle 
  

   or 
  Myrtus 
  communis, 
  where 
  it 
  has 
  come 
  to 
  be 
  

   of 
  some 
  importance 
  in 
  Israelitic 
  ritual. 
  Crisped 
  

   leaves 
  are 
  known 
  in 
  a 
  mallow, 
  Malva 
  crispa, 
  and 
  

   as 
  a 
  variety 
  in 
  cabbages, 
  parsley, 
  lettuce 
  and 
  

   others. 
  The 
  orbicular 
  fruits 
  of 
  Heeger's 
  shep- 
  

   herd 
  's 
  purse 
  (Capsella 
  heegeri) 
  recall 
  similar 
  

   fruits 
  of 
  other 
  cruciferous 
  genera, 
  as 
  for 
  in- 
  

   stance, 
  Camelina. 
  Screw-like 
  stems 
  with 
  wide 
  

   spirals 
  are 
  specific 
  in 
  the 
  flower-stalks 
  of 
  

   Cyclamen 
  and 
  Vallisneria, 
  varietal 
  in 
  Juncus 
  

   effusus 
  spiralis 
  and 
  accidental 
  in 
  Scirpus 
  lacus- 
  

   tris. 
  Dormant 
  buds 
  or 
  small 
  bulbs 
  in 
  inflo- 
  

   rescences 
  are 
  normal 
  for 
  wild 
  onions, 
  Polygo- 
  

   num 
  viviparum 
  and 
  others, 
  varietal 
  in 
  Poa 
  

   alpina 
  vivipara 
  and 
  perhaps 
  in 
  Agave 
  vivi- 
  

   para, 
  and 
  accidental 
  in 
  plantains 
  (Plant 
  ago 
  

   lanceolata), 
  Saxifraga 
  umbrosa 
  and 
  others. 
  

  

  