Thelotrema

The genus Thelotrema View in CoL View at ENA

Thelotrema View in CoL comprises more than 100 species, mostly restricted to the tropics or subtropics. With 43 species recognised for Australia ( McCarthy 2023), including four for Tasmania ( Mangold et al. 2009), and with Tasmania being very much at the geographical and ecological periphery of the distribution envelope of this essentially tropical-subtropical genus, it is remarkable to discover as many as three previously unrecorded taxa. Thelotrema View in CoL has been the subject of considerable taxonomic study, and several regional revisions have been published, including for Sri Lanka ( Hale 1981), southern U.S.A. ( Florida) ( Harris 1990; 1995), Africa (Frisch 2006), Europe ( Purvis et al. 1995), subantarctic regions ( Lumbsch et al. 2010), the British Isles (Aptroot et al. 2023), Central America ( Costa Rica) ( Sipman et al. 2012); India ( Joshi et al. 2018) and, critically, Australia ( Mangold et al. 2009) and New Zealand ( Galloway 2007). A world-wide key is also available ( Rivas Plata et al. 2010).