Question

Name the highest group of cryptogamae. Write down its characteristics too.

Answer 1

Thallus is the most primitive and highest group of cryptogamae.

Answer 2

Pteridophyta is the highest group of cryptogamae.

The general characteristics of cryptogamae are-

1. The plants of pteridophyta are terrestrial and they are mostly grow in cool, moist and shady places. E.g: Fern. Some plants of pteridophyta are aquatic. Eg: Azolla. There are some plants which are xerophytic. eg: Equisetum
2. The plant body is sporophytic and can be differentiated into root, stem and leaves.
3. Vascular tissue is found in stem and root of Pteridophyta.
4. They reproduce by means of spores found inside sporangia
5. The roots of the pteridophyta are adventitious.
6. They do not show secondary growth due to the absence of cambium.