137(136) Stalk short, 3-5mm. Spores (12)14-19 × 6-9µm, slightly flattened on one side. _Podosordaria leporina_ - Stalk long, 1-6cm. Spores larger. 138
138(137) Spores 21-24 × 11-12µm. Stromatic stalk hairy. _Podosordaria tulasnei_ - Spores 40-60 × 20-30µm. Stromatic stalk not hairy. _Podosordaria pedunculata_
139(136) Stroma externally black, rooted or partially immersed in the dung, expanding at the surface to form a white disc up to 15mm diam., punctate with black perithecial ostioles. (_Poronia_) 140 - Stroma not as above. 141
140(139) Spores 18-26 × 7-12µm, bean shaped, with gelatinous sheath. Stroma deeply rooted. Especially on horse dung. _Poronia punctata_ - Spores (22)25-32(35) × (12)14-18µm, oblong ellipsoid to slightly fusiform. Stroma not deeply rooted. Especially on rabbit dung near the sea. _Poronia erici_
141(139) Stroma spreading over surface of dung or filamentous. Spores ellipsoid to slightly flattened on one side, with germ slit. (Xerophilic fungi developing after long periods of relatively dry incubation). (_Wawelia_) 142 - Stroma clavate, black, partly immersed to superficial, usually aggregated in small groups, ca 1-1.5mm high × 0.6-0.7mm diam., each containing a single perithecium. Spores ellipsoid with germ pore and gelatinous sheath. (_Bombardioidea_) 146
142(141) Stroma spreading on substrate, black brown, firm but not brittle. Ascomata globose, 0.5-1mm, with white hyphae at neck. Spores broad limoniform, 15-19 × 9-10µm. _Wawelia effusa_ - Perithecia globose to pyriform, black, brown or dark grey, produced laterally along the length of fine stromatal strand growing from the dung. 143
143(142) Asci 4-spored. 144 - Asci 8-spored. 145
144(143) Spores 15-18 × 9-12µm. Perithecia up to 400µm diam., dark grey at maturity, single or clustered, the ostiole with a crown of silvery white hyphae. Stromata up to 30 × 0.1-0.5mm. _Wawelia_ sp. - Spores 6-8 × 4-6µm. Stromata conical, white, 5-12 × 1-2mm. _Wawelia regia_
145(143) Perithecia hairy, globose, 350-500µm diam., stromatal strands up to 25mm long. Spores ellipsoid, flattened on one side, 9-12 × 6-8µm. _Wawelia octospora_ - Perithecia villose with conidiophores, globose, 230-420µm diam., produced laterally on stromatic filaments 20-30 × 0.1-0.3mm. Filaments pink at first, with a white pointed tip, becoming brown, velvety with conidiophores. Spores ellipsoid to flattened on one side, 7.5-9.5 × 3-4.5µm. _Wawelia_ sp. (fig. 37)