﻿GLOSSARY 
  349 
  

  

  Epiphyte. 
  A 
  plant 
  which 
  grows 
  upon 
  other 
  plants. 
  

  

  Fertilization. 
  The 
  act 
  of 
  uniting 
  an 
  egg 
  and 
  a 
  sperm. 
  

  

  Fibrovascular 
  bundles 
  (fiber 
  vessels). 
  The 
  strands 
  that 
  make 
  up 
  the 
  

   framework 
  of 
  higher 
  plants. 
  

  

  Filament 
  (a 
  thread). 
  The 
  stalk 
  of 
  the 
  stamen 
  that 
  supports 
  the 
  

   anther; 
  also 
  the 
  individual 
  threads 
  of 
  algse 
  or 
  fungi. 
  

  

  Filiform. 
  Thread-like. 
  

  

  Fission 
  (splitting). 
  Cell 
  division 
  resulting 
  in 
  division 
  into 
  halves. 
  

  

  Fleshy. 
  Thick, 
  succulent. 
  

  

  Flowering 
  glume. 
  In 
  grasses, 
  the 
  bract 
  that 
  subtends 
  each 
  flower, 
  

   sometimes 
  called 
  lower 
  palet. 
  

  

  Formation. 
  An 
  ecological 
  group. 
  It 
  signifies 
  a 
  well-defined 
  assem- 
  

   blage 
  of 
  plants 
  characteristic 
  of 
  some 
  kind 
  of 
  station. 
  

  

  Frond 
  (a 
  leaf). 
  A 
  name 
  given 
  to 
  the 
  leaf 
  of 
  ferns. 
  

  

  Fruit. 
  The 
  ripened 
  ovary 
  and 
  its 
  contents. 
  

  

  Funiculus 
  (a 
  slender 
  rope). 
  The 
  stalk 
  of 
  an 
  ovule 
  or 
  seed. 
  

  

  Gametangium 
  (gamete 
  vessel). 
  The 
  specialized 
  organ 
  for 
  production 
  

   of 
  gametes. 
  

  

  Gamete. 
  A 
  reproductive 
  cell 
  which 
  ordinarily 
  becomes 
  functional 
  

   only 
  upon 
  union 
  with 
  another. 
  As 
  a 
  result 
  of 
  this 
  union 
  a 
  sexual 
  spore 
  

   is 
  formed. 
  

  

  Gametophyte 
  (gamete 
  plant). 
  The 
  sexual 
  stage 
  of 
  an 
  alternating 
  plant. 
  

  

  Gemma 
  (a 
  bud) 
  ; 
  pi. 
  gemmae. 
  In 
  bryophytes, 
  many-celled 
  buds 
  special- 
  

   ized 
  for 
  vegetative 
  propagation. 
  

  

  Generative 
  cell. 
  The 
  cell 
  within 
  the 
  male 
  gametophyte 
  of 
  spermato- 
  

   phytes 
  (usually 
  within 
  the 
  microspore 
  wall) 
  which 
  divides 
  to 
  form 
  the 
  

   two 
  male 
  cells. 
  

  

  Geotropism 
  (turning 
  toward 
  the 
  earth). 
  The 
  tendency 
  of 
  organs 
  or 
  

   portions 
  of 
  organs 
  to 
  go 
  downward. 
  

  

  Glaucous 
  (pale 
  green, 
  gray). 
  Whitened 
  with 
  a 
  bloom, 
  like 
  that 
  on 
  

   a 
  cabbage 
  leaf. 
  

  

  Glume 
  (a 
  husk). 
  A 
  chaff-like 
  bract 
  belonging 
  to 
  the 
  inflorescence 
  of 
  

   grasses 
  ; 
  the 
  outer 
  glumes 
  subtend 
  the 
  spikelet 
  ; 
  the 
  flowering 
  glume 
  

   is 
  the 
  bract 
  of 
  the 
  flower. 
  

  

  Gluten 
  (glue). 
  A 
  term 
  used 
  for 
  the 
  glue-like 
  products 
  of 
  plants, 
  

   especially 
  of 
  seeds. 
  

  

  Grain. 
  A 
  seed-like 
  fruit, 
  like 
  those 
  of 
  grasses, 
  with 
  pericarp 
  grown 
  

   fast 
  to 
  the 
  seed 
  ; 
  also 
  any 
  small, 
  rounded 
  body, 
  as 
  of 
  starch. 
  

  

  Growing 
  point. 
  The 
  group 
  of 
  meristem 
  cells 
  at 
  the 
  growing 
  tip 
  of 
  

   an 
  organ, 
  from 
  which 
  the 
  various 
  tissues 
  arise. 
  

  

  Guard 
  cells. 
  The 
  cells 
  (usually 
  two) 
  which 
  open 
  and 
  close 
  a 
  stoma. 
  

  

  Gymnosperms 
  (naked 
  seeds). 
  One 
  of 
  the 
  two 
  groups 
  of 
  spermato- 
  

   phytes 
  (seed 
  plants). 
  

  

  