FIGURE 2 in A new saxicolous species, Rinodina jacutica (Physciaceae, lichenized Ascomycota) from the Republic of Sakha (Yakutia), Russia

FIGURE 2. Spore ontogeny of Rinodina jacutica: A 1–6. Early spore development prior to wall pigmentation; 1, 2. apical walls unthickened prior to septum formation – type A development; 3, 4. septum present and walls equally thickened; 5, 6, walls thickened at apices and septum - Physcia-like locules. B. 1–5. Mature spores, walls pigmented, torus not evident, apical and septal wall thickening; 1, 2. locules Physcia-like; 3-5. spores with swelling at the septum; 4. spore focused to show septal disc, a characteristic of the Dirinaria-type spore. Scale bars = 10 μm.