Pictures of Flowers Bulb Pictures and Bulb Kind

By Pictures of flowers

on February 13, 2009

Pictures of Flowers Bulb Pictures and Bulb Kind

Bulb is usually a thick flesh bud that has an underground vertical shoot with thickened leaf bases, which are used as food storage organs for dormant plants. Leaf bases usually do not support leaves but contain food reserves to enable the plants to survive adverse conditions. Leaf bases resemble scales or overlap and surround the center of the bulb as in the onions. A modified stem forms the base of the bulb and the plant grows from the basal plate. Roots emerge from the underside of the base while new stems and leaves grow from the upper side.

Bulbs are sometimes ignorantly referred to as corms, rhizomes or tubers. The plants that form true bulbs include onion, garlic and other alliums, lily, tulip and other members of lily family, members of Amaryllis family and two groups of iris family. Bulbs are generally of two types the scaly and the tunicate. Scaly bulbs, like in most lilies, are made up of a short central core inside the thick and flashy leaves. The tunicate bulb, like in onions, has fleshy leaf bases in smooth and continuous layers.