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Classification of Plant Kingdom – Cryptogamae & Bryophyta

by Vinodh Reddy

Depending upon the presence or absence of flowers and seeds entire classification of plant kingdom is divided into two types. They are

  1. Cryptogamae and
  2. Phanerogamae.
Classification of Plant Kingdom

1. Cryptogamae:

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1.1 Thallophyta:

1.2 Bryophyta:

1.3 Pteridophyta:

2. Phanerogamae:

2.1 Gymnosperms:

2.2 Angiosperms:

2.2.1 Dicotyledons:

The leaves in members of Dicotyledons class exhibit reticulate (net-like) venation and show varied arrangement like alternate, spiral or whorled. The flowers are tetramerous or pentamerous having four or five members in the various floral whorls, respectively. The vascular bundles are open, i.e cambium is present between the xylem and phloem. The seeds of dicotyledons are with two cotyledons.

2.2.2 Monocotyledons:

The leaves of Monocotyledons are simple with a parallel venation. the vascular bundles are closed (cambium absent) and scattered in the parenchyma. the flowers are trimerous having 3 members only one cotyledon.

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