Imshaugia aleurites Parmeliaceae
Imshaugia aleurites

Growth type foliose
Chemical results: Cortex K+ yellow.
Medulla K+ yellow, C-, KC-, P+ yellow-orange, UV-

Occurs on wood, fence timbers and on acidic bark of conifers and birch.

Small, whitish-grey thallus, the lobes much divided. Under surface white or pale tan with simple white rhizines. Abundant coralloid isidia spread to form +/- continuous crust. Apothecia rare, discs red-brown, spores simple.

Similar: Parmeliopsis hyperopta is sorediate, UV+. Physcia clementei has narrower lobes, P-


Imshaugia aleurites


Imshaugia aleurites


Imshaugia aleurites
Imshaugia aleurites
Holton Lee, Dorset. March 2013

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