Porinaceae Porina leptalea Growth type crustose. Photobiont Trentepohlia Chemical results negative Found on smooth-barked deciduous trees in damp woodlands. Also on conifer bases in plantations and on damp, acidic rocks Very thin brownish-grey to dark olive-green thallus with small brownish-orange perithecia (0.15-0.2mm). Red-brown pycnidia often present. Spores 3-septate, 15-25 x 3-5 µm. Micrographs below. Similar: Porina aenea has blackish perithecia

Micrographs



Porina leptalea
Studland and Corfe Mullen, Dorset. October 2013, December 2018