Acanthocytes present, abundant on rhizomorphs and scattered in the hymenium
amphigenous Probasidia cylindrical to clavate, becoming bifurcate, 4050 x 56 m.
40-180 [micro]m wide; basidia 30-70 [micro]m.
65-80 [micro]m tall, hyaline to slightly pale brown, ascus Opegrapha-type, up to 60 [micro]m tall, 8-spored.
However, to critically distinguish the species and varieties in this group, it was essential to characterize several microscopic features, such as basidiospores, the various types of cells in the hymenium
(the spore-bearing layer lining both sides of the gills), and the tissues of the mushroom.
stigmatea (see below) but has oil drops distributed throughout the hymenium
and crystals in the exciple (Brodo et al.
Fruiting bodies: saucer-shaped, essentially stipeless, hymenium
and outer surface smooth, 1-3 mm across, bright lemon-yellow to golden yellow.
Spermogoniis epiphylliis, cavidatis stomatalis delimitatis, hymenium
concavo, sine esterillis structureae (typus I, Hiratsuka & Hiratsuka, 1980).