Ohio Biological Survey, Bull. 10, Vol. 11, No. 6

A thorough and approachable exploration of Ohio’s Lecideaceae lichens, this work presents the family’s defining features and situates them within the broader world of ascomycetes. Drawing on fifteen years of field collection in Butler County, the author guides listeners through the crust‑like thalli, the varied apothecial structures, and the striking range of spore forms—from simple hyaline grains to larger, brown, muriform types. Clear explanations of microscopic details, such as paraphyses development and algal partners, make the complex taxonomy accessible to both seasoned mycologists and curious newcomers.

The narrative also traces evolutionary links, comparing Lecideaceae to related groups like Patellariaceae, Gyalectaceae, and Buelliaceae, and highlights how subtle changes in exciple texture and spore complexity reveal deeper relationships. Throughout, the text balances rigorous scientific insight with language that reflects modern systematic mycology, offering a valuable reference for anyone interested in the hidden diversity of Ohio’s lichen flora.