description Peltigera horizontalis Overview
Peltigera horizontalis is a foliose ground lichen that commonly grows on soil, moss, humus, and other damp substrates in woodland and temperate habitats. It forms broad, leafy lobes and produces conspicuous apothecia, the disk-shaped sexual fruiting bodies characteristic of many lichen species. The lichen is relevant to field identification of Peltigera and to the study of cyanobacterium-containing ground communities.
help Peltigera horizontalis FAQ
Where does Peltigera horizontalis grow?
It is a ground-dwelling foliose lichen found on soil, moss, humus, and other damp substrates in woodland and temperate habitats. Look for it where the ground stays moist enough to support broad leafy lobes.
What are the red-brown disks on Peltigera horizontalis?
They are apothecia, the disk-shaped sexual fruiting bodies produced by the fungal partner. Their conspicuous position on the lobes is an important feature when distinguishing Peltigera horizontalis from similar ground lichens.
Is Peltigera horizontalis associated with cyanobacteria?
Yes. Peltigera species commonly form partnerships with cyanobacteria, which provide photosynthetic products and can contribute fixed nitrogen. This cyanobacterial association is part of the biology of this foliose ground lichen.
How can Peltigera horizontalis be confused with Peltigera polydactylon?
Both can form broad leafy lobes on damp ground, but Peltigera horizontalis is especially notable for conspicuous apothecia. Peltigera polydactylon is better known for narrower, finger-like lobe extensions, so the fruiting structures and lobe margins should be checked together.
explore Explore More
Similar to Peltigera horizontalis
See all arrow_forward
Reviews & Comments
Write a Review
Be the first to review
Share your thoughts with the community and help others make better decisions.
