Keys to the macrolichens and checklist of the lichens and ...

12a. Margins incised, on rock in alpine area ............................................S. alpinotropica
12b. Margins with isidia or lobules, not incised ............................................................ 13
13a. Margins with cylindrical isidia ..................................................................S. weigelii
13b. Margins with flattendd lobules; alpine ...............................................S. xanthotropa
Thamnolia Key:
1a. Thallus hollow ...................................................................................T. vermicularis
1b. Thallus solid................................................................................................ T. juncea
Usnea Key (after Stevens, G.N. 1999. A revision of the lichen family Usneaceae in Australia.
Bibliotheca Lichenologica 72.):
1a. Axis hollow................................................................................................ U. baileyi
1b. Axis solid ................................................................................................................. 2
2a. Plant pendulous........................................................................................................ 3
2b. Plant shrubby ........................................................................................................... 5
3a. Main branches with erose cotex, not angular....................................... U. longissima
3b. Main branches with smooth cortex, but angular...................................................... 4
4a. Axis yellow .........................................................................................U. himantodes
4b. Axis whitish ................................................................................................ U. hossei
5a. With soredia or isidia............................................................................................... 6
5b. Without soredia or isidia........................................................................................ 10
6a. Plant partly red......................................................................................U. rubicunda
6b. Plant greyish to yellowish........................................................................................ 7
7a. With isidia.................................................................................................. U. dasaea
7b. With soredia............................................................................................................. 8
8a. Branches inflated .................................................................................U. perplexans
8b. Branches not inflated ............................................................................................... 9
9a. Medulla P+ yellow, with psoromic acid .............................................U. pycnoclada
9b. Medulla P- or + red, with other acids ............................................ U. bismolliuscula
10a. Thallus soft, nearly without papillae...........................................................U. flexilis
10b. Thallus firm, with many papillae........................................................U. molliuscula
Xanthoparmelia Key:
1a. Thallus grey ..................................................................................... X. atrocapnodes
1b. Thallus yellowish green ........................................................................................... 2