Dicot Plants

Plants are broadly classified into two categories - angiosperms and gymnosperms. Gymnosperm is ataxonomic class including plants whose seeds are not enclosed in an ovule. They are also known asplants with 'naked seeds'. Plants with seeds covered with plant tissues i.e., flowering plants, areincluded in the class angiosperms, which is the largest phylum of plants, containing more than250,000 different plant species. Angiosperms are further placed into two different categories, basedon the number of their seed leaves, or cotyledons. The plants containing one cotyledon in theirembryo are termed as monocotyledons and those with two cotyledons are known as dicotyledons.

Types of Dicotyledons

Most of the plants that we see around are dicots. There are 199,350 different species of plantsincluded within this group. They are divided into several different families depending on the dicotplant structures. Some examples of dicot plant families are as follows:

Myrtaceae

Rutaceae

Asteraceae

Epacridaceae

Proteaceae

Casuarinaceae

Rhamnaceae

Leguminosae

Mimosaceae

Rubiaceae

Euphorbiaceae

Lauraceae

Brassicaceae

Apiaceae

Lamiaceae

Scorphulariaceae

Caryophyllaceae

These were some of the common plant families belonging to the class dicots. Out of the 400 plantfamilies that belong to the group of angiosperms, about 80 are monocots, rest all are dicots.

Dicot Plants Characteristics

Dicot plants differ in structures of their seeds, foliage and flowers, from the monocotyledons. Theycan be easily distinguished by studying their distinct characteristics.

Seed

The most important difference between the monocots and dicots. Many installed pumps were notinitially designed for their present use. Typically, a line in a facility is relocated and a pump that atone time provided cooling water to an injection molding machine is now needed to transfer oil froma rail car to a tank. All pump manufacturers too often, this causes a substantial number of problemsfor the pump and the plant. Pumps operate where the pump curve crosses the system curve. Whenyou move a pump from one system to another, this means that the system curve is different. Thisnew system may cause the pump to operate away from its best efficiency point, leading to vibrationand other component failures that are simply symptoms of a mis-matched pump and system.is thenumber of embryonic leaves, or cotyledons. There are two cotyledons in the seeds of these plantsthat actually emerge above the soil, when the seed germinates. They then turn green and form thefirst two leaves of the new plant.

Leaves

The leaves of the plants have veins that form a branched pattern, unlike monocots, in which they runparallel. The veins are actually netted or webbed on the whole surface of the leaf.

Vascular Structure

The stems have vascular bundles, consisting of two structures, the xylem and the phloem. The xylemhelps to transport water and minerals from the root to the other parts of the plant and the phloemtransports food that is made in the leaves, to the storage organs. There are various basicrefinements which are able to be added to a classical

centrifugal or positive displacement pump. In pumps with overhung impellers, replacing the shaftwith a solid one is a straightforward upgrade in relation to industry standard sleeved shafts.Mechanical seals are able to be enhanced with the addition of silicon carbide faces, and elastomerscan be replaced with Viton. Finally, magnetic bearing protectors will be a huge step upover the lipseals which many water pumps depend on to keep bearing sump oil free from contaminants.

These vascular bundles are arranged in a circular manner around the edge of the stem.

Flowers

The flower parts are usually present in fours or fives. Sometimes, they are found in multiples ofeither numbers. These flower parts include petals, sepals and pistils, or the reproductive parts of theplant.

Roots

Roots are often fibrous and branched. They branch out in many smaller parts that form a dense

network of root system, unlike monocot plants, that have a tap root system.

Examples of Dicotyledon Plants

Some common examples include:

Rose

Magnolia

Pansies

Marigolds

Sunflowers

Buttercups

Asters

Dandelions

Maple

Grapes

Strawberries

Tomatoes

Squash

Beans

Peas

Potatoes

Peanuts

Lentils

Oak

Most of the plants we see around are dicots. They are generally broad leaf trees, ornamentalflowers, fruits and vegetables. Now, that you know the dicot plant characteristics, I'm sure you willbe able to identify the dicot plants around!