Arthonia diploiciae Arthoniaceae
Arthonia diploiciae #

Growth type lichenicolous
Chemical results negative

Rare, parasitic on Diploicia canescens on church walls.
BLS conservation evaluation: DD NR

Thallus absent, clusters of small black apothecia produce brownish-grey spots on host thallus. Asci 4-spored, spores 1-septate, 8-11(-14) 3.5-4(-5) m. Microscope photograph below.

Similar: Arthonia epiphyscia 8-spored asci, larger spores on Physcia spp.
Arthonia punctella is parasitic on Diplotomma alboatrum


Arthonia diploiciae


Arthonia diploiciae


Arthonia diploiciae


Arthonia diploiciae

Microscope photograph
Arthonia diploiciae
Arthonia diploiciae
St. Hubert's, Corfe Mullen, Dorset. January 2014

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