Radula (plant)
Radula is a genus of liverwort, and is the only genus in family Radulaceae.

It is a leafy liverwort. The appearance of the plants are as a scaly, green surface on the trunk of a tree, log or rock in a sheltered, moist out-door environment.  The leaves are rounded, overlapping and consist of two unequal lobes. The smaller lobe is folded beneath the larger one. The oldest fossil species is Radula cretacea from the Cenomanian aged Burmese amber of Myanmar, belonging to the subgenus of Odontoradula. Molecular evidence suggests that the genus arose during the Triassic, around 227.8 Ma, and the crown group began to diversify during the Early Jurassic, around 176.3 Ma.

Species
World Flora Online lists up to 262 species. See List of Radula species, for full list of species.

Some selected species are listed here;

 Radula boninensis 
 Radula carringtonii 
 Radula cavifolia 
 Radula complanata 
 Radula deflexilobula Promma, L.N.Zhang et R.L.Zhu
 Radula demissa M.A.M.Renner, 2013
 Radula javanica 
 Radula jonesii Bouman, Dirkse & Yamada
 Radula kojana 
 Radula laxiramea 
 Radula marginata 
 Radula obtusiloba 
 Radula perrottetii 
 Radula visianica C. Massal.

References

External links 
 

Porellales
Porellales genera