because gemmae are a characteristic feature of liverworts (like Marchantia), not just mosses. In liverworts, gemmae are green, multicellular, asexual buds that develop in small receptacles called gemma cups on the thalli. While some mosses can produce brood bodies or gemma-like structures, the specialized "gemmae" and "gemma cups" are primarily associated with liverworts in standard biological classifications.

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