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Dog Lichen

Peltigera sp.

Photo by ForestDragon
Published on Project Noah
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37.45, -77.58

Field Notes

Description:

Leafy looking lichen with a leathery texture. Dark bluish gray upper with a white underside that has tiny spike-shaped protrusions (called rhizines). Found growing on the ground.

Habitat:

Temperate woodlands bordering a man made lake. Growing with moss. Rockwood Park, Virginia.

Notes:

Possibly Peltigera elisabethae or Peltigera horizontalis.

Reference Links:

Peltigera - Wikipedia, CNALH - Peltigera

Species ID Suggestions

Comments (4)
ForestDragon
Maria, upon doing a bit of research, the spiky protrusions are called rhizines (or rhisoid for singular) and are apparently a distinguishing feature between different species of lichens. They are described as a "rootlike or hairlike filament that grows from the stems of mosses and lichens".
Maria dB
Do you know what the spiky protrusions are?

Spotted for Missions

Mission
Rockwood Park

Tags

Photographed
PublishedMarch 22, 2018

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