See also: Bulb (homonymy)
A bulb is a vertical underground growth having Feuille S modified used like Organe of storage of Nourriture by a Plante with Dormance.
A bulb having sheet with the base generally does not develop of them others. It contains reserves of food to make it possible the plant to survive in the unfavourable situations.
The leafy base can exceed and in the case of surround the center of the bulb like the Lys ( scaly bulb ) or determine completely the center of the bulb as in the case of the Oignon. A Tige modified leaves the upper part of the bulb and the growth of the plant is done by this skew. The root S leave the lower part of the bulb.
Other types of bodies of storage (such as the Rhizome S, and the truffle S) are sometimes called (by error) of the bulbs. The correct name for this type of plant is Géophyte . Some Orchidée S épiphyte S form a body of air storage named Pseudobulbe , which resembles a bulb a little.
The Plante S forming of truths bulbs are all of the Monocotylédone S:
- Onion, garlic and all the Alliaceae ;
- Lilies, Tulip, and of many Liliaceae ;
- Amaryllis , Hippeastrum , Narcissus , and others Amaryllidaceae ;
- two groups of iris: Xiphium (the “Dutch” iris) and Hermodactyloides (the miniature iris of “Garden of stone”).
Bulblet
Certain lilies form small bulbs called bulblets . Many family members of the Alliaceae , such as Allium sativum (garlic), form bulblets on the level of the flowers, appearing when the flower fades, or even sometimes in the place of the flower.
See too
Simple: Bulb
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