Fertilization

Fertility [ Biology ]

Dictionary of botanic terminology - index of names


	The ability to produce viable offsprings.

Fertilization [ Botany - Biology]


	The union ( fusion of the nuclei ) of female and male gametes.

The fertilised egg cell forms a group of cells that becomes an embryo consisting of an axis, (root and stem, or hypocotyl and epicotyl) and cotyledons, with its associated protective and nutritive structures capable of developing into a plant.

Fertile [ Botany - Biology]


	A plant having the capacity to produce fruit, with functional reproductive organs, producing pollen capable of fertilisation and seeds or spores capable of germination.

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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