Source: Vondrák J., Svoboda S., Malíček J., Šoun J., Košnar J., Svensson M., Timdal E., Machač J. & Palice Z. (2024) Combining environmental DNA data and taxonomic surveys provides an unprecedented understanding of lichen diversity and accelerates the discovery of new species. – Preslia 96: 351–417, https://doi.org/10.23855/preslia.2024.351 – CC BY 4.0
Atrodiscus fagicola (Malíček 13433; but B, Malíček 13370; F, Malíček 14040). A, apothecium-like
ascomata; B, vertical section of ascoma; C, hymenium in high concentration of the Lugol’s solution; D,
hymenium in low concentration of the Lugol’s solution; E, hamathecium of flexuose, branched and
anastomosing pseudoparaphyses; F, Hypnorum-blue pigment in exciple and hymenium, forming a blue halo
(arrowhead) when concentrated; G, unitunicate asci; H–K, ascospores. B, F, G–K, observed in water; C, D, after
the Lugol’s solution treatment; E, stained by cotton blue; H–K, in differential interference contrast. Bars: A, 0.5 mm;
B–F, 20 μm; G–I, 10 μm; J, K, 5 μm.
