FIGURES 1–12 in Tilletia triraphidis (Tilletiaceae), a new smut fungus on Triraphis purpurea (Poaceae) from Namibia

FIGURES 1–12. Tilletia triraphidis sp. nov. (from holotype). 1. Habit (most florets in the unaffected spikelets have fallen off). 2. Sterile cells and a spore. 3. Sterile cell with a papilla (arrow). 4. Sterile cell with an appendage (arrow). 5–6. Spores in LM (in median and surface view, respectively). 7. Immature spore (left) (arrow shows the inner layer of the spore wall). 8. Spore with a hyaline papilla (arrow). 9. Spore with a hyaline appendage (arrow). 10–12. Spores and sterile cells in SEM. Scale bars: 1 = 1 cm, 2–11 = 10 μm, 12 = 5 μm.