Pleurophragmium parvisporum (Ascomycota): One name, seven stories – a case highlighting the need for verification of strains from public culture collections Author Réblová, Martina 0000-0001-5229-1709 Czech Academy of Sciences, Institute of Botany, Department of Taxonomy, 252 43 Průhonice, Czech Republic Author Nekvindová, Jana 0000-0002-2861-5483 Institute of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, 500 05 Hradec Králové, Czech Republic Author Bauchová, Lucie https://orcid.org/0009-0001-2658-9103 Czech Academy of Sciences, Institute of Botany, Department of Taxonomy, 252 43 Průhonice, Czech Republic Author Hernández-Restrepo, Margarita 0000-0001-5157-3392 Westerdijk Fungal Biodiversity Institute, 3584 CT Utrecht, Netherlands text IMA Fungus 2025 2025-11-25 16 e 173033 e 173033 journal article 313240 10.3897/imafungus.16.173033 4706a76f-0362-411a-965c-851eccafea40

Table 3. Synopsis table of species of Pleurophragmium.

Species accepted in Pleurophragmium s. str.
Taxon	Substrate *	Size (µm)	Conidia				End cells	Ornamentation	Conidiogenous cellsConidiophores		Reference
			Septa	Shape	Sheath	Colour			Size (µm)	Size (µm)
* natural substrate (NS); culture (C).
Pleurophragmium asiaticum	C	(13 –) 15–16 (– 17) × (3.5 –) 4.5 (– 5)	(2 –) 3	ellipsoid to obovoid, with truncate hilum at the base	present	pale brown		smooth-walled	5–35 × 4–7	50–100 × 3–5	Crous et al. 2018 a
Pleurophragmium asymmetricum	NS	12–15 × 2–3	1	narrowly clavate or subclavate	absent	yellowish to subhyaline		smooth-walled	8–35 × 3.5–5	40–210 × 3.5–9	Serrano et al. 2020
Pleurophragmium fluviale	NS	14–16 × 4–6	3	obovoid, rounded at the apex, pointed at the base	absent	subhyaline		smooth-walled	n / a	211–308 × 5–7	Luo et al. 2019
Pleurophragmium fusiforme	NS	29–34 × 4–6	(0 –) 1–3	navicular to tapering, pointed at both ends	absent	pale brown	paler	smooth-walled	n / a	214–285 × 4–5	Zhang et al. 2024
Pleurophragmium gaoligongense	NS	16–24 × 5–7	0–3	clavate-cymbiform, truncate at the base	absent	subhyaline to pale brown		smooth-walled	34–68 × 3–6	138–226 × 4–7	Xu et al. 2023
Pleurophragmium guizhouense	NS	8.9–12.7 × 2.8–4.8	(2 –) 3	fusoid-ellipsoid, apex obtuse or tapering, with a subtruncate hilum at base	absent	subhyaline to pale brown		smooth-walled	2.2–4.3 (width)	75–140 × 2–4.5	Hyde et al. 2020
Pleurophragmium jiulongheense	NS	16–23 × 3.7–5.6	3	clavate to fusiform, truncate at the base	present	subhyaline to pale brown		smooth-walled	n / a	(144 –) 204–332 × 3.4–4.8	Cao et al. 2025
Pleurophragmium luguense	NS	12–15 × 4–7	(0 –) 2–3	obovoid, tapering at the base	absent	subhyaline to pale brown		smooth-walled	39–68 × 3–5	152–298 × 4–6	Xu et al. 2023
Pleurophragmium naviculare	NS	16–24 × 5.5–7.5	(1 –) 3	navicular to fusiform, tapering to a hilum towards the base, obtuse at the apex	present	hyaline, becoming pale brown	paler	smooth-walled	n / a	100–200 × 4–5.6	Yang et al. 2023
Pleurophragmium parvisporum	NS	10–18 × 3.5–6	(0 –) 3 (– 4)	ellipsoid to subclavate, rounded at the apex, pointed at the base	absent	hyaline to very pale brown		crumpled	26–47 (– 51) × 4.5–5.5	(80 –) 118–250 (– 270) × (3.5 –) 4–5	This study
Pleurophragmium pteridophytophilum	NS	8.5–11 × 3–4	0–1	obovoid	absent	hyaline to pale brown		rough-walled	20–55.5 × 2.5–4 (– 4.5)	150–224 × 2.7–4.9	Zhang et al. 2025
Pleurophragmium septatum	C	(12 –) 14–16 (– 20) × (3.5 –) 4 (– 5)	(1 –) 3	fusoid-ellipsoid, apex obtuse, tapering in lower third to a truncate hilum	present	hyaline, becoming pale brown		smooth-walled	30–40 × 4–5	40–70 × 4–5	Crous et al. 2018 a
Pleurophragmium sichuanense	NS	9.5–14.5 × 4–4.5	0–1	fusiform or narrowly obovoid	absent	subhyaline to pale brown		finely verrucose	n / a	93–130 × 4–5	Chen et al. 2025
Pleurophragmium sorbicola	C	(7 –) 8–10 (– 15) × 4 (– 5)	(0 –) 1 (– 3)	obovoid, obtuse at the apex	present	hyaline, pale brown with age		smooth-walled	20–65 × 3–4	50–200 × 4–7	Crous et al. 2018 b
Pleurophragmium s. lat.: species of uncertain status
Pleurophragmium angamosense	C	24.5–40 × 5–8	3–7 mostly 5	fusiform, curved or straight	absent	pale brown	paler	smooth-walled	3–3.5 (width)	200 × 3.5–4.5	Matsushima 1995
Pleurophragmium aquaticum	NS	25–30 × 6–6.5	3	fusiform to clavate, sometimes navicular, truncated at the base	absent	brown, paler around septa	paler	smooth-walled	n / a	200–390 × 5–11	Heredia et al. 2007
Pleurophragmium bitunicatum	C	20–35 × 4.5–7	3 (– 5)	fusiform, narrowly truncated at the base	absent	brown		smooth-walled	n / a	(50 –) 100–220 × 3–5	Matsushima 1975
Pleurophragmium clavatum	NS	9.5–16.5 × 3.5–4.5	0	clavate to fusiform, narrower at the ends, tapered to a point at the base	absent	yellowish brown		verrucose	n / a	75–160 × 3.3–4	Ma et al. 2014
Pleurophragmium ellipsoideum	NS	10–17 × 6–8.5	3	ellipsoid to obovoid, rounded at the apex, pointed at the base	absent	pale brown		smooth-walled	n / a	150–260 × 3.5–6	Ma et al. 2014
Pleurophragmium harunganae	NS	12–18 × 5–7	0	fusoid, curved	absent	subhyaline to pale olivaceous		smooth-walled	n / a	150 × 4–5	Hansford 1946
Pleurophragmium indicum	NS	20–30 × 4.5–11	3	ellipsoidal to obovoid, rounded at the apex, pointed at the base, straight to slightly curved	absent	dark brown	paler	smooth-walled	15–23 × 4.5–9.5	100–160 × 7–22	D‘Souza and Bhat 2012
Pleurophragmium malaysianum	C	(20 –) 40–75 × 4–5	3–10 pseudoseptate	cylindrical to clavate, rounded at the apex, protruding at the base	absent	hyaline		smooth-walled	n / a	25–50 (– 100) × 3.5–5	Matsushima 1996
Pleurophragmium miniumbonatum	NS	16–19 × 6–7	(2 –) 3	obovoid, pyriform to broadly clavate, sometimes slightly clavate, umbonate at the apex, truncate at the base	absent	dark brown to brown	subhyaline basal cell	smooth-walled	55–95 × 3–3.5	90–150 × 5.5–7	Castañeda 1999
Pleurophragmium naviculiforme	C	18–32 × 6.5–10	1	navicular, pointy at the apex, pointed at the base	absent	hyaline		smooth-walled	n / a	70–140 × 6–8	Matsushima 1975
Pleurophragmium obcampanuloides	C	(10 –) 11.5–15.5 (– 18) × 5–6.5 (– 7)	(1 –) 2	obpyriform to turbinate	absent	pale olivaceous, olivaceous in mass		smooth-walled	n / a	100–150 × 3.8–5	Matsushima 1995
Pleurophragmium peruamazonicum var. peruamazonicum	C	10–30 × 4–6	2	cylindrical, rounded at the apex, pointed at the base	absent	pale brown, fuscous in mass	subhyaline	smooth-walled	n / a	100–300 × 3–4	Matsushima 1993
Pleurophragmium peruamazonicum var. inflatum	C	13–20 × (5 –) 6–9 (– 10)	(1 –) 2	ovoid, rounded at the apex, narrow at the base	absent	pale sooty	subhyaline apical cell	smooth-walled	n / a	(50 –) 200–600 × 4–5.5	Matsushima 1993
Pleurophragmium subfusiforme	C	21–38 × 5.8–9.2	3–7	fusiform, straight to sometimes curved	absent	subhyaline, pale fuscous in mass		smooth-walled	n / a	200–500 × 4–5	Matsushima 1975
Pleurophragmium taiwanense	C	12–20 × 3–4.5	3	cylindro-clavate, with a slightly inflated apical cell	absent	pale brown	hyaline	smooth-walled	n / a	70–200 (– 250) × 3.5–4.5	Matsushima 1987
Pleurophragmium tricolor	NS	17–18 × 4–5	2	ellipsoidal with, rounded at the apex, pointed at the base	absent	brown, light brown basal cell	hyaline apical cell	smooth-walled	n / a	196–200 × 5–7	Rambelli 2009
Pleurophragmium varieseptatum	NS	19–22 × 4–5	1–4	cylindrical, rounded at the apex, pointed at the base	absent	pale olivaceous, olivaceous-grey in mass		smooth	n / a	70–125 × 3.5–5	Matsushima 1975
Pleurophragmium verruculosum	C	10–16.5 × 3.3–5	1–3 (– 3)	subclavate, clavate, pointed at the base	absent	subhyaline to pale brown		verrucose	n / a	8.2–26.4 (– 15) × 1.6–4.5 (– 3)	Tiwari et al. 1969
Pleurophragmium yunnanense	NS	10–15 × 6–7	(2 –) 3	broadly fusiform, narrowed at the ends, tapered to a point at the base	absent	pale brown		smooth	n / a	185–270 × 3.5–4.5	Ma et al. 2014