Identification key
Hypogymnia physodes/H. tubulosa
(1) Hypogymnia physodes / H. tubulosa
Description
Thallus
Foliose, up to 10 cm in diameter, sparsely attached to substrate, lobes elongated (up to 6 mm wide), overlapping each other and having a swollen (succulent-like) appearance
Foliose, up to 10 cm in diameter, sparsely attached to substrate, lobes elongated (up to 6 mm wide), overlapping each other and having a swollen (succulent-like) appearance
Color
Light gray upper side
Light gray upper side
Reproduction
Apothecia: rare, 2–7 mm in diameter, shiny reddish-brown disc
Soralia: greenish to brownish, present at the lobe edges
Isidia: absence
Apothecia: rare, 2–7 mm in diameter, shiny reddish-brown disc
Soralia: greenish to brownish, present at the lobe edges
Isidia: absence
Risk of confusion
Parmotrema perlatum/P. reticulatum, usually larger and has distinctly raised lobes at the edges
Parmotrema perlatum/P. reticulatum, usually larger and has distinctly raised lobes at the edges
Ecology
Substrate
On bark, sometimes on non-calcareous rock
On bark, sometimes on non-calcareous rock
Habitat
Rather acidophilous
Rather acidophilous
Occurrence
Common
Common
Sensitivity to air pollution
Resistant to acid pollution
Resistant to acid pollution
(2)
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