Types of Classification
According to the traditional classification system, the plant kingdom is divided into two subkingdoms- Cryptogamae and Phanerogamae.
Cryptogamae and Phanerogams
Cryptogams do not bear conspicuous reproductive structures like seeds. They are also called lower plants or seedless plants. Phanerogams have evident reproductive structures in the form of seeds. They are called seed plants. Cryptograms have three divisions- Thallophyta, Bryophyta, and Pteridophyta. Phanerogams have only one division- Spermatophyta.
In the recent times, plants are differentiated into subgroups on the basis of the following criteria:
- Vascular System: Vascular system is present or absent for the transportation of water and minerals.
- Seed Formation: Seeds are present or absent in the flower, and they are either enclosed in the fruit or are naked.
- Plant Body: Well-differentiated plant body is present or not.
What is Plant Kingdom?
Kingdom Plantae was one of the kingdoms in the five-kingdom classification given by R.H Whittaker. All the organisms of the plant kingdom are multicellular and eukaryotes. Examples of the Plant kingdom include algae, mosses, ferns, gymnosperms, and angiosperms. Organisms belonging to the Plant Kingdom are all capable of synthesizing their food i.e. they are autotrophic. The further classification of Plant Kingdom is carried out according to both structural and reproductive characteristics.
The majority of plants are sessile, which means they have a single root system and do not move from one area to another. Most plants belong to the angiosperm plant family, including the flowering plants. Rose, Lily, and Jasmine are all examples of Angiosperms. On the other hand, Conifers are examples of Gymnosperms.
Table of Content
- What is Plant Kingdom?
- Characteristics of Kingdom Plantae
- Types of Classification
- Classification of Kingdom Plantae
- Monocotyledons Vs Dicotyledons