Pertusaria leioplaca Pertusariaceae
Pertusaria leioplaca

Growth type crustose
K+ yellow, C-, KC+ yellow, P +/- orange-red, UV +/- pale orange

Can be frequent particularly in the north and west on smooth-barked deciduous trees and shrubs in +/- shaded and sheltered locations

Thin whitish to pale green-grey thallus, the margin +/- unzoned. Scattered flat-topped warts with spreading bases, apothecia usually single with small pore-like discs. Pycnidia rare. Asci (3-) 4 (-6) spored, spores (40-)50-80(-120) x (20-)25-40(-50) Ám. Microscope photographs below.

Sometimes host to Sphinctrina tubiformis


Pertusaria leioplaca

Pertusaria leioplaca

Microscope photographs
Pertusaria leioplaca, spores

Pertusaria leioplaca, spores
Pertusaria leioplaca
Brands Bay and Pamphill, Dorset. January 2013 and 2016

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