| 1 | Ascomata almost white, yellowish-white or light fawn-grey when fresh, dark yellow, buff, tawny to dark ginger-brown or yellow-grey when dried, purple pigment absent in cells of the outer ascomatal layer, setae absent | 2 |
| – | Ascomata reddish, reddish-brown, russet or brown, sometimes with red surface crystals, globose cells in the outer ascomatal layer may contain pale purple pigment when fresh, setae present or absent | 3 |
| 2 | Ascomata almost white to yellowish-white, translucent, areolate when fresh, with a distinct black papilla, asci 270–295 × 18.5–20.5 μm, ascospores (3–)5–11-septate, (55–)69–86 × 5–6.5(–7) μm | P. albidus |
| – | Ascomata light fawn-grey, not areolate when fresh, papilla indistinct or absent, asci 215–270 × 11–14 µm, ascospores (7–)11(–13)-septate, 62–88 × 4.5–6 µm | P. bombycinus |
| 3 | Ascomatal setae present only at the apex or absent | 4 |
| – | Ascomatal setae present at the apex and also scattered over entire surface of the ascoma, or setae only scattered over ascoma, occasionally absent | 8 |
| 4 | Ascomata with red surface crystals, ascospores 7-septate, 80–100 × 3.5–4.2 μm, anamorph craspedodidymum-like, conidia globose to subglobose in a vertical position, with setulae | P. rubicundus |
| – | Ascomata without red surface crystals, ascospores with seven or more septa | 5 |
| 5 | Ascomata more than 500 μm diam, setae occasionally absent, ascospores 7-septate, 50–100 × 4.5–6 μm, anamorph craspedodidymum-like, conidia oblate to horizontally oblong with a short abscission scar or frill, without setulae, tropical distribution | P. lapazianus |
| – | Ascomata less than 500 μm diam, setae present at the apex, ascospores with seven or more septa, temperate and subtropical distribution | 6 |
| 6 | Ascospores (7–)11–13-septate, (90–)95–123.5 × 4–5(–5.5) μm, asci 210–295 × (16.5–)17–24.5 μm | P. granulatus |
| – | Ascospores with up to 11 septa, 87 μm and shorter | 7 |
| 7 | Ascospores 9–11-septate, (58–)60.5–80.5 × (3–)3.5–4.5(–5) μm, asci (134–)140–174(–189) × 11–13(–14) μm | P. smokiensis |
| – | Ascospores (5–)7–9(–11)-septate, (62–)65–87 × (3.5–)4–5.5 μm, asci (185–)195–240 × 12–14.5(–15.5) μm | P. abietinus |
| 8 | Setae present at the apex and also scattered over entire surface of ascoma, ascospores 7-septate | 9 |
| – | Setae scattered over entire surface of ascoma, occasionally absent, ascospores with seven or more septa | 10 |
| 9 | Ascospores (50.4–)52.5–68 × 3.5–4.5 μm, craspedodidymum- and chloridium-like synanamorphs, conidia without setulae | P. longisporus |
| – | Ascospores (64.5–)68.5–86.5(–88.5) × (3–)3.5–4.5 μm, anamorph unknown | P. sabinianus |
| 10 | Ascospores 7-septate | 11 |
| – | Ascospores with more than seven septa | 14 |
| 11 | Asci up to 152 μm long | 12 |
| – | Asci 150 μm and longer | 13 |
| 12 | Ascomatal setae 60–75 μm long, ascospores 65–75 × 3–4 µm, asci 123–140 × 10–11 µm, craspedodidymum-like anamorph, conidia without setulae, purple-pigmented aleuriospore-like cells present in culture | P. panamensis |
| – | Ascomatal setae 38–47 μm long, ascospores 63.3–75 × 2.3–3.7 µm, asci 120–152 × 10.7–13.3 µm, anamorph unknown | P. garethjonesii |
| 13 | Ascospores (50–)60–100(–150) × 3–3.75(–4.5) µm, asci (150–)180–250(–350) × 10–20(–27) µm, craspedodidymum-like anamorph, conidia with or without setulae, some strains also with a chloridium-like synanamorph | P. raciborskiis. lat. (fideHuhndorf and Fernández 2005; as Paragaeumannomyces sp. 1–4 in the phylogeny, Fig. 2) |
| – | Ascospores (57.5–)60–73(–75) × (3.5–)4–4.5(–5) μm, asci (152–)174–221(–227) × 10.5–15(–20) μm, anamorph unknown | P. elegans |
| 14 | Ascospores 5–10-septate, 65–90 × 3–4 µm, asci 105–125 × 10–12.5 µm | P. sphaerocellularis |
| – | Ascospores 13–16-septate, 50–65 × 2–4 μm, asci 70–100 × 10–13 μm | P. raciborskiis. str. (fidePenzig and Saccardo 1897; Carroll and Munk 1964) |