To solve this problem, we need to identify which group of plants contains gemmae.$\newline$Gemmae are small, multicellular reproductive structures that are involved in asexual reproduction. They are typically found in certain non-vascular plants.$\newline$Let's analyze each option:$\newline \bullet$Mosses:$\newline$ - Mosses are non-vascular plants that reproduce both sexually and asexually.$\newline$ - They do not typically produce gemmae; instead, they reproduce asexually through fragmentation or by producing spores.$\newline \bullet$Pteridophytes:$\newline$ - Pteridophytes are vascular plants that reproduce via spores.$\newline$ - They do not produce gemmae as part of their reproductive strategy.$\newline \bullet$Some Gymnosperms:$\newline$ - Gymnosperms are seed-producing plants that do not produce gemmae.$\newline$ - They reproduce sexually through seeds.$\newline \bullet$Some Liverworts:$\newline$ - Liverworts are non-vascular plants that often reproduce asexually through gemmae.$\newline$ - Gemmae are produced in specialized structures called gemma cups, which are characteristic of liverworts.$\newline$Therefore, the correct answer is Option 4: Some Liverworts.