''Radula jonesii'' is a species of

liverwort The Marchantiophyta () are a division of non-vascular land plants commonly referred to as hepatics or liverworts. Like mosses and hornworts, they have a gametophyte-dominant life cycle, in which cells of the plant carry only a single set of g ...

in the family

Radulaceae ''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. ...

. It is known from a few locations on

Madeira ) , anthem = ( en, "Anthem of the Autonomous Region of Madeira") , song_type = Regional anthem , image_map=EU-Portugal_with_Madeira_circled.svg , map_alt=Location of Madeira , map_caption=Location of Madeira , subdivision_type=Sovereign st ...

and one location on

Tenerife Tenerife (; ; formerly spelled ''Teneriffe'') is the largest and most populous island of the Canary Islands. It is home to 43% of the total population of the archipelago. With a land area of and a population of 978,100 inhabitants as of Janu ...

. The populations are small and vulnerable. This liverwort forms dark green to olive green mats on rocks or on trees such as ''

Laurus novocanariensis ''Laurus novocanariensis'' is a large shrub or tree with aromatic, shiny dark-green foliage. belonging to the evergreen tree genus ''Laurus'' of the laurel family, Lauraceae. The genus includes three species, whose diagnostic key characters ofte ...

'' and ''

Ocotea foetens ''Ocotea foetens'', commonly called til or stinkwood is a species of tree in the family Lauraceae. It is evergreen and grows up to 40 m tall. It is a common constituent of the laurisilva forests of Madeira and the Canary Islands. Leaf fossils of ...

''. It is part of the old growth laurel forest ecosystem on the islands. On Madeira this ecosystem is protected.''Radula jonesii''.
Swedish University of Agricultural Sciences.

References

Porellales Plants described in 1988 Flora of the Canary Islands Flora of Madeira Taxonomy articles created by Polbot {{Bryophyte-stub