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Monstrosity  [ Botany ]
Also:
Monstruosity or Forma mostruosa
Adjective: Monstrose, Monstrous or Mostruosus
Synonym: Freak

Dictionary of botanic
terminology
index of names

     
  A mutation that deviate greatly in appearance or structure from the normal characteristic of a plant (stems, spines, flowers, etc), frequently referred to an abnormal uncoordinated form of vegetative growth, often with random production of differentiated organs, resulting in loss of normal growth habit.  
     
For example a plant with a multitude or condensed lateral proliferation or of club-like stem without leaves or spines. Such monstrous form could suddenly appear in every plant and completely change their form.

 

 


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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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