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

5a. Phyllocladia mainly basal, absent from most of the pseudopodetia; cephalodia
usually white and with a granular surface; perlatolic acid present; on alpine rocks.
...................................................................................................................S. staufferi
5b. Phyllocladia present all over the pseudopodetia; cephalodia blue-grey, sometimes
with a brownish tinge, with a smooth surface; perlatolic acid absent; on alpine
rocks or otherwise.................................................................................................... 6
6a. Apothecia mainly lateral on short branchlets along upper half of the
pseudopodetia; above 3000 m.............................................................. S. flabellatum
6b. Apothecia mainly terminal, in furcately branched groups, sometimes with
additional lateral ones along the apical ramifications; c. 2000-4000 m .................. 7
7a. Pseudopodetia slender, 0.5-1(-1.2) mm thick; widespread in mountains from
c. 2000-4000 m ................................................................................S. massartianum
7b. Pseudopodetia stout, 1.2-2 mm thick; above c. 3500 m only ..................... S. brassii
Sticta Key (some additional species are reported, but not seen by me):
1a. Algae green .............................................................................................................. 2
1b. Algae bluegreen, lobe margins with or without lobules .......................................... 4
2a. Thallus stipitate........................................................................................................ 3
2b. Thallus not stipitate.................................................................................S. variabilis
3a. Lobe margins entire ..................................................................................... S. sayeri
3b. Lobe margins with lobules.....................................................................S. myrioloba
4a. Thallus stipitate........................................................................................................ 5
4b. Thallus not stipitate................................................................................................ 11
5a. Thallus with lobules or isidia................................................................................... 6
5b. Thallus without lobules or isidia.............................................................................. 8
6a. Isidia laminal............................................................................................................ 7
6b. Lobules present, marginal................................................................... S. marginifera
7a. Lobes narrow, branched..................................................................... S. cyphellulata
7b. Lobes rounded, unbranched......................................................................S. brevipes
8a. Lobes narrow, branched........................................................................................... 9
8b. Lobes broad, nearly unbranched, thallus often small ............................................ 10
9a. Margin with black cilia ........................................................................... S. fimbriata
9b. Margin without cilia...................................................................................... S. leami
10a. Thallus foveate........................................................................................ S. heppiana
10b. Thallus mostly smooth...........................................................................S. boschiana
11a. Thallus with soredia............................................................................. S. sublimbata
11b. Thallus without soredia.......................................................................................... 12