Acarospora fusca B. de Lesd.
Source: Knudsen et al. 2017, Mycotaxon 132: 861
Neotype of Acarospora fusca (Schiefelbein 4446, NY): A, dispersed areoles of the thallus with solitary apothecia. B, areoles with mostly solitary apothecia forming a contiguous indeterminate crust. C, apothecia 1–(2–4) per areole in contiguous crust. D, vertical section of ascoma. Scale bars: A–C = 500 μm; D = 100 μm. (Reproduced from Knudsen et al. 2017, Mycotaxon 132: 861).GZU). C. Detail of the thallus with sharp edged areoles and immersed apothecia. – Scale bars: A, B = 1mm. C =500 μm.
Natural History Museum London - Source: https://mycoportal.org/portal/taxa/index.php?taxon=83801
