Which one of the following statement is incorrect for mosses ?

Options

A. Predominant stage of the life cycle is the gametophyte
B. Spore germinates into leafy stage with multicellular rhizoids
C. Vegetative reproduction occurs by budding in the secondary protonema
D. The have an elaborate mechanism of spore dispersal

Answer

To determine which statement about mosses is incorrect, let's analyze each option step by step:

1. **Predominant stage of the life cycle is gametophyte.**
- Mosses are classified as bryophytes, and in bryophytes, the dominant stage of the life cycle is indeed the gametophyte stage. This statement is correct.

2. **Spore germinates into leafy stage with multicellular rhizoids.**
- When a spore of moss germinates, it develops into a structure called a protonema, which is a filamentous stage. The leafy stage, which is the gametophyte, develops from the protonema. Multicellular rhizoids are also associated with the gametophyte stage, not directly with the spore germination. Therefore, this statement is incorrect because it inaccurately describes the relationship between the spore, protonema, and the leafy stage.

3. **Vegetative reproduction occurs by budding in the secondary protonema.**
- Mosses can reproduce vegetatively through budding, which can occur in the secondary protonema. This statement is correct.

4. **They have an elaborate mechanism for spore dispersal.**
- Mosses do have mechanisms for spore dispersal, which can involve wind and water. This statement is also correct.

Based on the analysis, the incorrect statement regarding mosses is the second one: "Spore germinates into leafy stage with multicellular rhizoids."

### Summary of the Solution:
- The incorrect statement about mosses is: "Spore germinates into leafy stage with multicellular rhizoids."