SriLankaLichens_Book_eng - page 14

14
28
Thallus with isidia.
Upper surface without
perforations
Hypogymnia
zeylanica (R.
Sant.) D.D.
Awasthi & Kr.P.
Singh
29
Lichens with
conspicuous
perforations (cyphellae
or pseudocyphellae) on
the upper or lower
surface
30
29 Lichens without such
perforations 37
30
Photobiont
chlorococcoid (upper
surface bright green in
the wet state)
31
30
Photobiont
cyanobacterial (upper
surface dark-coloured
in the wet state)
32
31
Tallus K+ yellow, with
isidia. Perforations
limited to the upper
surface
Cetrelia
braunsiana (Müll.
Arg.) W.L. Culb.
& C.F. Culb.
31
Thallus K-, without
isidia. Perforations
limited to the lower
surface
Dendriscosticta
platyphylloides
(Nyl.) Moncada &
Lücking
32 Thallus without
soredia or isidia
Pseudocyphellaria
beccarii (Kremp.)
D.J. Galloway