According to Oswald Tippo Angiosperms are placed under:-

Options

A. Atracheata
B. Thallophyta
C. Tracheophyta
D. Spermatophyta

Answer

**Step-by-Step Solution:**

1. **Understanding the Classification by Oswald Tippo**: Oswald Tippo classified the plant kingdom into two main sub-kingdoms: Thalophyta and Embryophyta.

2. **Defining Thalophyta**: Thalophyta includes plants that have a thallus-like body structure and lack distinct alternation of generations. Notably, these plants do not have embryos.

3. **Defining Embryophyta**: In contrast, Embryophyta includes plants that exhibit organ-level differentiation, a regular alternation of sporophytic and gametophytic generations, and the presence of embryos.

4. **Further Classification of Embryophyta**: Within Embryophyta, there are two main groups: Bryophyta (non-vascular plants) and Tracheophyta (vascular plants).

5. **Understanding Tracheophyta**: Tracheophyta is further divided into four subphyla:
- Cyclopsida
- Lycopsida
- Sphenopsida
- Teropsida

6. **Identifying Angiosperms**: Angiosperms are included in the subphylum Teropsida, which is a part of Tracheophyta.

7. **Conclusion**: Therefore, according to Oswald Tippo, Angiosperms are placed under Tracheophyta.

**Final Answer**: Angiosperms are placed under Tracheophyta according to Oswald Tippo.

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