Members of this clan tend to have a succulent organs or "fleshy": thick with high water content. Thus the orchid can live in conditions of low water availability. Water is obtained from the rain, droplets, dew, or moisture in the air. However, orchids are not found in desert regions because the roots are not intensive. Orchids like light but not direct sunlight so that the orchids are usually found in nature as a plant floor or in the shade of the forest. For ornamental plants, orchids stand in the room. Root fibers, not inside. The types of epiphytes that develop roots and succulent stems attached to the tree where he grew up, but does not harm the host tree.
There is also growing geofitis, with another term means terrestria grown in soil with roots in the soil. There is also a saprophyte, growing on a medium dry leaves and decayed wood that has decayed into humus. At the root surface is often found root fungus (mycorrhiza) are symbiotic with orchids. Jointed stems of orchids. Orchids that live in the ground ("ground orchid") is short and tends to resemble the stem tubers. Meanwhile, the trunk epiphytic orchids grow well, often thickened and the protected layer of wax to prevent excessive evaporation. Stem growth can be "elongated" (monopodial) or "widened" (simpodial), depending on the genus.
Orchids usually elongated oval leaves with elongated leaves the bone anyway. The leaves can also thicken and serve as water storage. Distinctive orchid-shaped flowers and that sets it apart from other tribal members. The orchids are composed compound, emerged from the elongated flower stalks, leaves emerging from the armpits. The flowers of bilateral symmetry. Strands of flower petals (sepals) are usually colored similar to the crown). One strand of modified petals form a kind of "tongue" that protects an accessory structure that carries the stamens and pistil. Stamens have very short stalks with two disc-shaped anthers small (called "pollinia") and protected by a small structure that must be opened by insect pollinators (or humans for vanilla) and carry pollen to the pistil mouth. Without the help of organisms pollinators, pollination will not occur.
Orchid-shaped fruit capsule that is green when ripe and dry and open from the side. Seeds are small and lightweight, so easy to wind. Orchid seeds do not have a network storage of food reserves and even the embryo has not reached perfect maturity. New germination occurred when seeds fall on the corresponding medium and continue its development until maturity.
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