Tremella pyrenulae (BR, holotype) a, b Brown to pinkish basidiomata on thallus of Pyrenula ochraceoflavens c Hymenium with numerous basidia d–i, Basidiosporesj–l Mature 1-septate basidia with
epibasidiam–rBasidia.AllmicroscopicalphotosinPhloxinBusingDIC optics. Scale bars: a–b=200μm, c=10μm, d–r=5μm (scale bar inr). Photographs by P. Diederich