Life Cycle of a Fern

 
 

   Ferns, unlike some other plants, do not flower in order to propagate. Instead, they reproduce sexually from        spores.

   The life cycle of a fern is very different from the life cycle of many other plants.

   While many plants grow a mature adult form straight out of the seed, ferns have an intermediate stage,            called a gametophyte, which then grows into a mature fern.

   There are two distinct stages in the life cycle of ferns. The first stage is        that of the gametophyte.

   Spores are produced on the underside of mature plants. These will                germinate and grow into small, heart-shaped plants called gametophytes.

   The gametophytes produce both sperm and egg cells, and will fertilize            itself, or others. Once the fertilization occurs, the adult fern will begin            growing.

   The second stage in the life cycle of a fern is the adult stage. The                fertilized gametophytes begin to look like a mossy growth.

   After some time, young fronds will appear, rising out of the moss. If direct      sunlight falls onto the young fronds for an extended period of time, the          plant may die easily. This is because the tiny stems are not strong enough      to sustain direct light and will dry out.

   Once these tiny fronds grow larger, the plant has a better chance of              survival. When the veins are matured, moisture from the ground will be          transported easily to the outermost leaves and the plant can withstand          periods of direct sunlight.

   After the plant is large and mature, it will grow spores on the undersides of      its leaves and the life cycle of a fern will begin again.

 


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09/01/2014 20:50:00 -207.198.123.130-Unknown