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Dicotyledon

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Dicotyledon
Scientific Classification
Orders

Subclass Asteridae

Subclass Caryophyllidae

Subclass Dilleniidae

Subclass Hamamelididae

Subclass Magnoliidae

Subclass Rosidae

Dicotyledons are a group of flowering plants that belong to the taxonomic class Magnoliopsida (formerly Dicotyledoneae). They are characterized primarily by the possession of two initial leaves, or cotyledons in the embryo, which is usually surrounded by the endosperm. For example, the bean is a dicot. When a bean seed is opened, it can be separated into two halves that develop into the cotyledons. Dicot plants also generally have broad leaves with netlike veins.

Contents

Anatomy

Dicot seed: a - seedcoat, b - endosperm, c - cotyledons, d - embryo
Dicot seed: a - seedcoat, b - endosperm, c - cotyledons, d - embryo

Dicotyledons' are a woody plant and the seed typically contains two embryonic leaves or cotyledons and is usually surrounded by the endosperm. Dicotyledons normally have wide leaves with netlike veins. The roots on them are most likely tap roots.

Reproduction

During reproducton, the root of the radicle grows out to attach to the plant. Followed shortly after, a short stem above the root grows. The hypocotyl then carries up the cotyledons above the ground and they become the first sprouted green leaves on the plant. Then the stem, leaves and branches, are formed, while the development of the radicle forms the root-system. The growth rate and size of the adult plant varies quite a bit. It can be anywhere from staying small and lasting only one season, or it can be grown to a forest tree that would easily live for centuries.

Ecology

Magnolia Watsoni
Magnolia Watsoni

Since these are mostly flowering plants they typically grow in gardens. They typically need calm weather environmets. They do vary in where they live and their sizes(their size effecvts what kinds of weather they can handle) but they usually all dont live very long in harsh weather. You will usually find them outside growing in your garden or in a place that is fairly sunny year round.

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