A new fossil liverwort with gemma cups from the Lower Cretaceous

The R2R3-MYB transcription factor GEMMA CUP-ASSOCIATED MYB1 plays a crucial role in gemma cup formation MpGCAM1 is expressed at both

In liverworts such as Marchantia, the flattened plant body or thallus is a haploid gametophyte with gemma cups scattered about its upper surface

gemmae cups Marchantia polymorpha thallus with gemma cups Photo by Michael Lüth, with permission Water Relations No growth can occur in the absence of

gemma cups Gemma cup are special vegetative ,small cup shaped structures borne along the midrib on the dorsal surface of gametophyte of some bryophytes