SriLankaLichens_Book_eng - page 23

23
64
Lower surface with
superficial yellow to
orange pigments
(sometimes patchy)
65
65 Pigment covering most
of the lower surface
Heterodermia
obscurata (Nyl.)
Trevis.
65 Pigment in tiny spots 66
66
Apothecia without a
conspicuous corona of
lobules along the
margin. Lobe-tips K+
yellow, then red
Heterodermia
propagulifera
(Vain.) J.P. Dey
66
Apothecia with a
conspicuous corona of
lobules along the
margin. Lobe-tips K+
yellow
Heterodermia
queensberryi
Weerakoon &
Aptroot
67
Thallus white to grey-
white, narrow-lobed
(lobes to 2.5 mm
wide). Spores brown,
2-celled
68
67
Thallus of various
colours, rarely white,
the lobes usually > 2.5
mm wide. Spores
colourless, 1-celled
72
68 Thallus without
soredia
Physcia integrata
Nyl.