Fig. 4.

Barrmaelia oxyacanthae (a, d, e, g–n, p–u: WU 36925; b, c, f, o: PC 0706585, holotype). a–c Ostioles protruding through the blackened wood surface. d Perithecium in vertical section. e, f Perithecia in transverse section. g Vertical section of perithecial wall. h–o Ascospores (o in KOH + Melzer) with germ slits of spore-length (j–n). p–r Paraphyses apices. s–u Asci. All in water, except where noted. Scale bars: a–c = 500 μm; d, f = 250 μm; e = 350 μm; g, o, s–u = 10 μm; h–n, p–r = 5 μm