FIGURE 1 in Arthonia buelliae sp. nov. (Arthoniaceae, Arthoniales, Ascomycota) and other noteworthy lichenicolous fungi from the Primorye Territory of Russia

FIGURE 1. Arthonia buelliae (holotype). A, ascomata immersed in galls on the thallus of Buellia stellulata. B, ascoma and gall with an aggregation of brown prosoplectenchymatic hyphae in cross-section in water. C, ascoma in cross-section in water. D, ascoma in crosssection in I; note I+ blue then reddish-brown reaction. E, epihymenium in water (on the left) and K (on the right). F, paraphysoids in K. G, asci in K/I. H, ascospores in water (on the left) and K/I (on the right); note immature hyaline ascospores (at the top right). Scales: A = 0.5 mm, B–D = 50 μm, E–H = 10 μm.