FIGURE 4 in Ten new species of Sticta and counting: Colombia as a hot spot for unrecognized diversification in a conspicuous macrolichen genus

FIGURE 4. Sticta maculofuliginosa (holotype collection). A. Thallus in situ. B. Thallus in herbarium. C. Lower surface. D. Lower surface enlarged. E. Maculate surface with laminal isidia. F. Laminal isidia enlarged. G. Microscopic section through thallus and cyphella. H. Microscopic section through thallus and isidium. Scale in A–D = 5 mm, in E and F = 1 mm, in G and H = 50 µm.