SriLankaLichens_Book_eng - page 43

43
140
Photobiont
chlorococcoid (algal
layer bright green)
145
141 Apotecial disc pale-
coloured to orange 142
141
Apothecial disc dark,
from dark brown to
black
143
142 Thallus continuous
Coenogonium
luteum (Dicks.)
Kalb & Lücking
142
Thallus byssoid
(consisting of very thin
filaments)
Coenogonium
linkii Ehrenb.
143
Apothecia with a
carbonised margin,
sometimes forming a
central columella
(section!)
Ocellularia s.l.
spp. (incl. Chapsa )
143 Apothecia without
carbonised parts 144
144
Apothecia with a thin
proper margin
separated from thalline
margin by a split and
bearing periphyses
Thelotrema spp.