SriLankaLichens_Book_eng - page 42

42
137
Spores with thickened
septa and rounded
lumina, often I+ blue-
violet. Paraphyses
unbranched
Graphis spp.
137
Spores with thin septa,
I-. Paraphyses usually
densely branched and
anastomosing
138
138
Apothecia sessile, with
a well-developed,
carbonised margin
Opegrapha spp.
138
Apothecia immersed in
the thallus, with a
poorly developed, non-
carbonised margin
Sclerophyton
elegans Eschw.
139 Spores colourless Graphina spp.
139 Spores brown Phaeographina
spp.
140
Photobiont
trentepohlioid (algal
layer orange-green)
141