Ritu went to a supermarket to buy few modified stems for her dinner and few modified stems for home decoration. Name at least one of them each. Also write a few lines on the purpose of modification of stem in each example.
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Modification of Stem :
- Rhizome
- Corm
- Runner
- Offset
Rhizome :
Rhizome is a -
modified stem that grows horizontally underground; it has nodes and internodes
Examples :
- Ginger
- Ferns
- potato
Corm :
corm, vertical, fleshy, underground stem that acts as a food-storage structure in certain seed plants.
It bears membranous or scaly leaves .
- Example: Corcus
Offsets :
It is shorter and thicker and is found in aquatic plants.
It originates from the axis of the leaf and grows horizontally.
- Example : Pistia
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