description Peltigera membranacea Overview
Peltigera membranacea is a foliose lichen that usually grows on soil, moss, humus, and other moist ground substrates in temperate regions. Its thallus consists of broad, thin lobes with a somewhat membranous texture, and the species has a cyanobacterium as its principal photosynthetic partner. It is relevant to field studies of ground lichens and to readers interested in nitrogen-fixing symbioses in woodland ecosystems.
help Peltigera membranacea FAQ
Where does Peltigera membranacea grow?
It usually grows on soil, moss, humus, and other moist ground substrates in temperate regions. Damp woodland floor is a more typical habitat than exposed rock or dry tree bark.
Why is Peltigera membranacea called membranacea?
The name reflects its broad, thin lobes and somewhat membranous texture. When hydrated, the thallus can look like a flexible leafy membrane spread across the ground.
Does Peltigera membranacea contain cyanobacteria?
Yes. Its principal photosynthetic partner is a cyanobacterium, which supplies organic carbon and can contribute biologically fixed nitrogen. This is typical of the ecology of many Peltigera ground lichens.
How can Peltigera membranacea be separated from Peltigera horizontalis?
Both are broad-lobed ground lichens, so their habitat and upper surface may look similar. Peltigera horizontalis is especially associated with conspicuous apothecia, while Peltigera membranacea is identified more from its thin membranous lobes and underside characters.
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