Classification of Plant Kingdom
Plant kingdoms are classified with the help of the system discovered by A.W. Eichler. There are two subkingdoms of the plant kingdom such as cryptogams and phanerogamae.
Introduction
There is no doubt that the plants are basically the eukaryotes which are able to complete their photosynthesis system. These are related to the kingdom Plantae. It can be stated that the plant kingdom comprises all living things apart from animals. The bacterias, algae and fungus are also related to the plant kingdom. One of the main parts of the planet kingdom is cryptogams which are flowerless and also seedless. The study is going to discuss the two types briefly ahead.
Classification of Plant Kingdom
There are five main groups which are related to the plant kingdom. These types are given below:
Thallophyta: This is the essential part of the plant kingdom and there is a particular definition of thallophyta which refers to the particular division of plant kingdom comprising the primary or primitive types of plants. The life of the plants is shown in a simple plant body. The unicellular algae are one of the examples related to the thallophyta. The other examples of thallophyta are ulothrix, chara, spirogyra, ulva and many more.
Bryophyta: This is the other important part of the plant kingdom. This part is related to the non-vascular plants. The liverworts, hornworts and mosses are considered as the bryophyte and the features of bryophytes are the limited size of them and they can prefer to survive in the drier place. The other feature is the body of the ants is gametophyte.
Pteridophyta: This is considered as the crucial part of the plant kingdom because it is the group of vascular plants and their lifecycle sometimes alternates between the gametophytes and sporophytes. Example:fern. The other examples are club-mosses and horsetails. The main features of these types of plants are they are seedless, multicellular and they can reproduce with the help of spores.
Gymnosperms: These are also considered as the vascular plants but the main feature of gymnosperms is that they are seed-producing plants. The other features of gymnosperms are that they do not produce flowers, the seeds are not related to the fruits. There are some types of gymnosperms such as ginkgophyta, pinophyta, gnetophyta and many more. The examples of the particular type of plant kingdom are conifers and cycads.
Angiosperms: The last type of the plant kingdom is angiosperms. These are the flower producing plants and they can put their seed inside the fruits. These are the largest part of the plant kingdom and there are more than 300 species of angiosperms. This part covers more than 80 % of the plant kingdom. The characteristics of angiosperms are that the seeds have a single cotyledon, the structure of the leaves is simple and the veins of the leaves are parallel. The examples of angiosperms are sunflower, beans and many more.
Concept of classification of plant kingdom
Concept of the classification over the plant kingdom can be stated as the plant kingdom is basically a group of objects which are natural and that comprises all types of extinct and living plants. Sometimes the plant kingdom can be compared with the animal kingdom as well as the mineral kingdom. There are some features of the plant kingdom which can clear the concept about this kingdom. Features are given below:
- Plants have the green pigment or the chlorophyll and for this reason they complete their photosynthesis process
- Cellulose, which is the proper material to create a strong cell wall for the plants
- They are not able to move. For this reason, the plants can be fixed in one particular place
Definition of Classification of Plant Kingdom
There is a particular definition of classification of plant kingdom. The kingdom plantae is mainly composed for the main three evolutionary associated groups such as the bryophytes, angiosperms and gymnosperms. There is some importance of the plant kingdom such as the plant kingdom is the resource of mankind or the human being. It can be stated that without plants, human beings cannot survive on the planet because humans and other animals can get oxygen from the plants. The other importance is that the photosynthesis is done by the plant kingdom.
Conclusion
From the above discussion, it can be concluded that it is based on the concept of eukaryotic organisms which are both unicellular and multicellular. This kingdom comprises the living organisms and it is also important to know that the cell walls of the plants contain chlorophyll which is the reason for the green color of plants. On the other hand, it is showcased that there are two main categories of the plant kingdom and the cellulose tries to make the cell wall sturdy.