Arthonia endlicheri Opegraphaceae
Sparria endlicheri (Arthonia endlicheri)

Growth type crustose
Chemical results: K-, C+ red, KC+ red, P-, UV-
BLS conservation evaluation: LC NS Sc

Most often found on siliceous coastal rocks under dry, shelterd overhangs.

Thick, uneven, whitish-pink thallus, often forming ridges or sometimes rosette-like. Upper surface sorediate, the soredia packed with minute crystals. Apothecia very rare, spores 3-5 septate, 14-20 x 5-7 Ám.

Similar: Dirina massiliensis f. sorediata has a thinner thallus


Arthonia endlicheri

Arthonia endlicheri

Arthonia endlicheri
Arthonia endlicheri
On chert and limestone, Portland, Dorset. February 2016

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