Peltigera malacea can be found in montane and (sub)alpine locations on acid soil. This one is from Tyrol, Austria.
- Habitus. Thallus, 10 - 20cm , thick. Lobes up to 3 cm wide and 10 cm long. Blueish green when wet, dry greybrown. Surface smooth, towards the margins with a fine tomentum. Undersurface pale at the margins, becoming dark brown or black at the center. Barely veins or rhizines. Chemistry: C + red (gyrophoric acid).
- Cross section lobe, oblique
- Cross section lobe, darkfield
- Cross section lobe, closeup cyanobacteria (Nostoc) and upper cortex.
- Cross section lobe. Tomentum. Staining with Lactophenol-Methylblue-Acidfuchsin
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