128(127) Spores 45-53µm long. _Pyxidiophora petchii_ (fig. 36) - Spores 53-65µm long. _Pyxidiophora schotterianus_ 129(125) Spores 60-70µm long. 130 - Spores (75)80-90(100)µm. Perithecia 120-160µm diam., neck 220-370µm long. _Pyxidiophora bainemensis_ 130(129) Perithecial necks 300-700µm long. Spores 60-70µm. Perithecia 100-120µm diam. _Pyxidiophora spinuliformis_ - Perithecial necks 225-265µm long. Spores 65-70µm. Perithecia 110-125µm diam. _Pyxidiophora marchalii_ 131(120) Perithecia small, up to 400µm diam., with hairy necks. Spores hyaline or pale, coppery-red en masse, extruded in tendrils. 132 - Perithecia larger, without hairy necks. If smaller than 200µm, with spores smaller than 5 × 3µm. 134 132(131) Spores reniform, with gelatinous sheath, 3.5 × 2-3µm, yellow, reddish brown _en masse_ in extruded tendrils. Asci spherical, evanescent. Perithecia black, spherical, 200-400µm diam., with cylindrical neck up to 300µm long, with sparse pointed hairs. _Microascus longirostris_ - Spores larger, not reniform. Perithecia up to 300µm diam. 133 133(132) Perithecial necks long, up to 750µm, with terminal hairs up to 1500µm, curved or circinate at tips. Spores limoniform, 7-10.5 × 5.5-7µm. _Lophotrichus ampullus_ - Perithecial necks short, ca 50µm, with long straight tapering hairs. Spore shape limoniform/variable, 6-7.5 × 5-5.5µm, with prominent germ pores. _Lophotrichus bartletti_ 134(131) Perithecia up to 150µm diam., immersed but for a conical neck 50-75µm high. Asci 50 × 2-2.5µm. Spores minute, cylindrical, 3.5-4.5 × 1.75-2.5µm. _Phomatospora coprophila_ (fig. 35) - Perithecia more obvious, often hairy, or tomentose when young. Immature spores up to 70µm long, wavy cylindrical, with a row of globules inside and a short thin appendage at each end. (see _Cercophora_, 49) 135(1) Perithecia immersed, surrounded at the neck by a very limited flange-like stroma which is easily overlooked. see _Hypocopra_, 101 or if orange see _Selinia_, 119 - Stroma very conspicuous. 136 136(135) Perithecia in a subglobose group at the tip of the stromatic stalk. Spores with germ slit and gelatinous sheath. (_Podosordaria_) 137 - Perithecia not in a terminal head. 139