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Gypsophiles   [ Botany  -  Ecology ]
Synonym: Gypsophilous

Dictionary of botanic terminology - index of names

     
  Gypsophiles or Gypsophilous plants are those species which live or thrive in a gypsum-rich soil  


The term gypsophiles or gypsophilous also describe a vegetation type adapted or surviving on gypsum-habitats, this vegetation is particularly common in xeric areas whit reduced precipitation. Some of the gypsum-dwelling species are widely distributed ones which more commonly thrive on non-gypseous soils while other species are specialized and often endemic of restricted areas with gypsiferous soils.
 

 


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Holdfast roots  [ Botany  ]

Dictionary of botanic terminology - index of names

 
     
  Some species of climbing plants develop holdfast roots which help to support the vines on trees, walls, and rocks. By forcing their way into minute pores and crevices, they hold the plant firmly in place.  
     
Climbing plants, like the poison ivy (Toxicodendron radicans), Boston ivy (Parthenocissus tricuspidata), and trumpet creeper (Campsis radicans),  develop holdfast roots which help to support the vines on trees, walls, and rocks. By forcing their way into minute pores and crevices, they hold the plant firmly in place. Usually the Holdfast roots die at the end of the first season, but in some species they are perennial. In the tropics some of the large climbing plants have hold-fast roots by which they attach themselves, and long, cord-like roots that extend downward through the air and may lengthen and branch for several years until they strike the soil and become absorbent roots.

Major references and further lectures:
1) E. N. Transeau “General Botany” Discovery Publishing House, 1994
     

 

 

 

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