Bryophytes

The question asks about the presence of gemmae, which are specific structures involved in asexual reproduction, commonly found in certain plant types.

Gemmae: Gemmae are small, lens-shaped structures that are involved in asexual reproduction. They can develop into a new individual without the need for fertilization.

Explanation of Options:

• Mosses: While mosses do employ asexual reproduction, gemmae are not typically the structures used for this purpose.
• Pteridophytes: Generally, pteridophytes reproduce through spores and do not utilize gemmae for asexual reproduction.
• Some Gymnosperms: Gymnosperms primarily reproduce through seeds and do not generally employ gemmae in their reproductive process.
• Some Liverworts: Liverworts, especially those within the genus Marchantia, are known for possessing gemmae as a means of asexual reproduction. These structures are produced in cup-like formations called gemma cups which facilitate the dispersal of gemmae.

The correct answer is Some Liverworts because these plants specifically use gemmae in structures known as gemma cups for asexual reproduction.

Thus, the presence of gemmae is a characteristic feature of some liverworts.