About Reboulia hemisphaerica (L.) Raddi
Reboulia hemisphaerica, commonly called the hemisphaeric liverwort or small mushroom-headed liverwort, is the only currently accepted liverwort species in the genus Reboulia. A potential second species, Reboulia queenslandica (Stephani) M. Hicks, was published in 1992. Later research determined it is actually a polyploid cross between two varieties of R. hemisphaerica, and therefore not a distinct species. Subsequent botanical lists and publications do not recognize R. queenslandica as a separate species. Two compounds, riccardin C (a phenolic cyclic bibenzyl secondary metabolite) and marchantinquinone, have been isolated from R. hemisphaerica.
