Spirogyra belongs to which group of plant kingdom?

Thallophyta

 The correct answer is Option (4) - Thallophyta

Certainly! Let's explore each option:

1. Bryophyta: Bryophyta represents the group of non-vascular plants, including mosses, liverworts, and hornworts. These plants lack true vascular tissues, such as xylem and phloem. Spirogyra does not belong to this group.

2. Angiosperms: Angiosperms are flowering plants characterized by enclosed seeds within ovaries (fruits). Spirogyra is not an angiosperm; it is a type of green algae.

3. Pteridophyta: Pteridophyta includes ferns, horsetails, and club mosses. These plants have vascular tissues but do not produce seeds; instead, they reproduce via spores. Spirogyra is not classified under Pteridophyta.

4. Thallophyta: Thallophyta represents a group of plants with a thallus-like structure, lacking true roots, stems, and leaves. It includes algae, fungi, and lichens. Spirogyra, being a filamentous green alga, falls under the Thallophyta group.

Summary:

• Spirogyra belongs to the group Thallophyta, as it is a filamentous green alga with a thallus-like structure.
• It is not classified under Bryophyta, Angiosperms, or Pteridophyta.