Identify the incorrect statement regarding mosses:
1. | Leaves are one cell thick except at the midrib and lack stomata. |
2. | The first gametophyte stage is protonema, that is creeping and green. |
3. | The second stage is the leafy stage, which develops from the secondary protonema as a lateral bud. |
4. | Rhizoids are elongated and unicellular. |