FIGURE 1 in Four new species of Arthothelium (Arthoniales, Ascomycetes) from Africa and Socotra

FIGURE 1. New species of Arthothelium from Africa. Arthothelium atrorubrum (A−E, holotype), Arthothelium aurantiacopruinosum (F−J, holotype), A−B, F−G. Thallus with apothecia. C−E, I & J. Ascospores. H. Ascus in water. Scale in A, F = 1000 μm, in B = 500 μm, in C−E, I & J = 10 μm, in G = 250 μm, in H = 20 μm.