FIGURE 2 in Rinodina riparia (Physciaceae, lichenized Ascomycota) new to Eurasia from China and Russia

FIGURE 2. Rinodina riparia (specimen from Yakutia, SASY L-2008-08-07/0-2). A. Habit of Rinodina riparia, apothecia broadly attached and contiguous, disc persistently plane, thalline margin concolorous with thallus, entire and persistent. B, C. Dirinaria-type spores with the Physcia-like lumina. B. Premature spore, note the septal swelling and lack of a torus. C. Mature spores showing bulbous apices and septal swelling in KOH. D. Immature spores indicate prior to septal division in Type B development in KOH. Scale: A = 0.5 mm, B, C, D = 10 μm.