SriLankaLichens_Book_eng - page 24

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68 Thallus with soredia 69
69
Rhizines
conspicuously
projecting beyond lobe
margins. Thallus K-
Phaeophyscia
hispidula (Ach.)
Essl.
69
Rhizines not
conspicuously
projecting beyond lobe
margins.Thallus K+
yellow
70
70 Soralia laminal Physcia krogiae
Moberg
70 Soralia marginal 71
71
Lower surface with
conspicuous red-
brown to brown-black,
corticate, ribbed or
nerve-like longitudinal
striations
Physcia atrostriata
Moberg
71 Lower surface
uniformly coloured
Physcia sorediosa
Lynge
72
Without soredia or
isidia, often with
apothecia
73