Liverwort Marchantia with gemma cups

Liverwort Marchantia with gemma cups

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Caption: The liverwort Marchantia polymorpha. This species bears cup-shaped structures called gemma cups (seen here), each of which contains several discoid gemmae. A gemma is a specialised multicellular unit of vegetative reproduction found in certain mosses and liverworts. When rain falls into the gemma cup the gemmae are splashed out and can produce new individuals identical to the parent. The upper surface of the leaf of this species shows air pores.

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Keywords: botany, bryophyte, bryophytes, gemma cup, gemma cups, liverwort, liverworts, marchantia polymorpha, nature, plant

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