taxonID	type	description	language	source
6BE76E591F17542BA956022AAE7639CA.taxon	description	Figs 4 a, e, f	en	Vizzini, Alfredo, Consiglio, Giovanni, Adamčíková, Katarína, Setti, Ledo, Adamčík, Slavomír (2025): Pseudobaeosporoideae, a new subfamily within the Tricholomataceae for the genus Pseudobaeospora (Agaricales, Tricholomatineae) based on morphological and molecular inference. IMA Fungus 16: e 144994, DOI: 10.3897/imafungus.16.144994
4EADA13271FD513D81C8C0E91B0891C2.taxon	description	Fig. 12	en	Vizzini, Alfredo, Consiglio, Giovanni, Adamčíková, Katarína, Setti, Ledo, Adamčík, Slavomír (2025): Pseudobaeosporoideae, a new subfamily within the Tricholomataceae for the genus Pseudobaeospora (Agaricales, Tricholomatineae) based on morphological and molecular inference. IMA Fungus 16: e 144994, DOI: 10.3897/imafungus.16.144994
4EADA13271FD513D81C8C0E91B0891C2.taxon	description	Selected descriptions. Bas (2003: 173 – 174), Adamčík et al. (2007: 370 – 372).	en	Vizzini, Alfredo, Consiglio, Giovanni, Adamčíková, Katarína, Setti, Ledo, Adamčík, Slavomír (2025): Pseudobaeosporoideae, a new subfamily within the Tricholomataceae for the genus Pseudobaeospora (Agaricales, Tricholomatineae) based on morphological and molecular inference. IMA Fungus 16: e 144994, DOI: 10.3897/imafungus.16.144994
4EADA13271FD513D81C8C0E91B0891C2.taxon	description	Description. Spores (3.3 –) 3.7 – 4.0 – 4.4 (– 5.0) × (2.7 –) 2.9 – 3.2 – 3.5 (– 4.4) μm (64 / 2 / 2), Q = (1.00 –) 1.16 – 1.28 – 1.41 (– 1.61), V = (14.1 –) 15.9 – 21.5 – 27.2 (– 50.1) μm 3, globose to subglobose or broadly ellipsoid, walls up to 0.8 µm thick, dextrinoid at maturity, smooth, colorless in L 4; hilar appendix prominent, 0.8 – 1 µm long. Basidia 16 × 4 µm, tetrasporic, clavate, sterigmata up to 2.5 µm long. Hymenophoral trama regular to subregular, composed of globose to subglobose, broadly cylindrical, up to 22 µm wide hyphae, colorless in L 4. Cheilocystidia 23 – 25 × 5 – 7 µm, thin-walled, poorly differentiated and similar to basidioles. Pleurocystidia absent. Pileipellis: suprapellis cellulodermic / epithelioid, composed of slightly gelatinized, smooth, globose to subglobose, up to 24 × 22 µm elements; subpellis like suprapellis structure but with 21 × 13 µm elements, with rare cylindraceous hyphae; pigments greenish, intracellular. Stipitipellis consisting of up to 4 µm wide, multiseptate, closely packed, longitudinal hyphae. Stipititrama like stipitipellis structure but with up to 12 µm wide hyphae. Caulocystidia 12 – 22 × 2 – 7 µm, numerous at stipe apex, single or in small clusters, scattered towards the stipe base, often multiseptate with terminal elements cylindrical to broadly clavate. Clamp-connections rare, scattered. Specimen examined: SLOVAKIA, Vihorlatské vrchy Mts., ca. 1.5 km SW of the church, old pastures, Strihovce village, terrestrial, on flysh, 18 April 2003, leg. V. Kučera (SAV-F: 3516). SWEDEN, Medelpad, Borgsjö, öster om Östby, Örtrik granskog (Medelpad, Borgsjö, east of Östby, Örtrik spruce forest), 3 September 1991, leg. L. Andersson (UPS-F: 623041) (as Pseudobaeospora pillodii).	en	Vizzini, Alfredo, Consiglio, Giovanni, Adamčíková, Katarína, Setti, Ledo, Adamčík, Slavomír (2025): Pseudobaeosporoideae, a new subfamily within the Tricholomataceae for the genus Pseudobaeospora (Agaricales, Tricholomatineae) based on morphological and molecular inference. IMA Fungus 16: e 144994, DOI: 10.3897/imafungus.16.144994
2177C1126A445BC3BCEEF07B8830817C.taxon	description	Figs 4 b, 13	en	Vizzini, Alfredo, Consiglio, Giovanni, Adamčíková, Katarína, Setti, Ledo, Adamčík, Slavomír (2025): Pseudobaeosporoideae, a new subfamily within the Tricholomataceae for the genus Pseudobaeospora (Agaricales, Tricholomatineae) based on morphological and molecular inference. IMA Fungus 16: e 144994, DOI: 10.3897/imafungus.16.144994
2177C1126A445BC3BCEEF07B8830817C.taxon	description	Selected descriptions. Arnolds et al. (2003: 66 – 68), Arauzo (2011 a: 23, 25), Gisotti et al. (2021: 123 – 125).	en	Vizzini, Alfredo, Consiglio, Giovanni, Adamčíková, Katarína, Setti, Ledo, Adamčík, Slavomír (2025): Pseudobaeosporoideae, a new subfamily within the Tricholomataceae for the genus Pseudobaeospora (Agaricales, Tricholomatineae) based on morphological and molecular inference. IMA Fungus 16: e 144994, DOI: 10.3897/imafungus.16.144994
2177C1126A445BC3BCEEF07B8830817C.taxon	description	Description. Spores (4.0 –) 4.5 – 4.8 – 5.2 (– 5.4) × (2.9 –) 3.5 – 3.7 – 4.0 (– 4.2) μm (64 / 1 / 1), Q = (1.10 –) 1.21 – 1.31 – 1.40 (– 1.51), V = (19.7 –) 29.2 – 35.2 – 41.3 (– 48.0) μm 3, broadly ellipsoid to ellipsoid, slightly amygdaliform in side view, walls up to 0.8 µm thick and dextrinoid at maturity, smooth, colorless in L 4, hilar appendix prominent, 0.8 – 1 µm long. Basidia 21 – 25 × 6.5 – 8.0 µm, some with up to 1 μm thick wall (crassobasidia), tetrasporic, rarely bisporic to monosporic, clavate, sterigmata up to 4.5 µm long. Hymenophoral trama regular to subregular, composed of up to 12 µm wide cylindrical to inflated hyphae, colorless in L 4. Cheilocystidia 15 – 30 (– 34) × 3 – 7 (– 11) µm, rare, scattered, basidiola-like to irregularly cylindrical, lageniform, sometimes lobed to furcate. Pleurocystidia present, very rare, similar to cheilocystidia but bigger, up to 56 × 12 µm. Pileipellis: suprapellis (at the pileus centre) a transition between trichoderm and epithelium consisting of loosely entangled ascending and erect pluriseptate hyphae, terminal elements broadly cylindrical, clavate to subglobose, up to 18 µm wide; towards the pileus margin it tends to become a cutis with repent hyphae; pigment abundant, brownish grey, bluish, intracellular and encrusting (extracellular), green in KOH; pileitrama consisting of up to 8 µm wide cylindrical hyphae. Stipitipellis consisting of 2 – 4 µm wide, multiseptate, parallel, cylindrical hyphae. Stipititrama similar to the stipitipellis structure but with 3 – 6 µm wide hyphae. Caulocystidia 10 – 70 (– 80) × 3.0 – 7 µm, filiform, sinuous, often multiseptate, sometimes irregularly lobed and furcate. Clamp-connections present everywhere.	en	Vizzini, Alfredo, Consiglio, Giovanni, Adamčíková, Katarína, Setti, Ledo, Adamčík, Slavomír (2025): Pseudobaeosporoideae, a new subfamily within the Tricholomataceae for the genus Pseudobaeospora (Agaricales, Tricholomatineae) based on morphological and molecular inference. IMA Fungus 16: e 144994, DOI: 10.3897/imafungus.16.144994
94F027D8CBAE5003A10A8772CEEBE5D5.taxon	description	Fig. 7	en	Vizzini, Alfredo, Consiglio, Giovanni, Adamčíková, Katarína, Setti, Ledo, Adamčík, Slavomír (2025): Pseudobaeosporoideae, a new subfamily within the Tricholomataceae for the genus Pseudobaeospora (Agaricales, Tricholomatineae) based on morphological and molecular inference. IMA Fungus 16: e 144994, DOI: 10.3897/imafungus.16.144994
94F027D8CBAE5003A10A8772CEEBE5D5.taxon	diagnosis	Diagnosis. Pseudobaeospora deceptiva differs from P. pillodii by larger basidiospores, tetrasporic basidia and lack of rhizoids and from the other members of the genus by its unique phylogenetic position.	en	Vizzini, Alfredo, Consiglio, Giovanni, Adamčíková, Katarína, Setti, Ledo, Adamčík, Slavomír (2025): Pseudobaeosporoideae, a new subfamily within the Tricholomataceae for the genus Pseudobaeospora (Agaricales, Tricholomatineae) based on morphological and molecular inference. IMA Fungus 16: e 144994, DOI: 10.3897/imafungus.16.144994
94F027D8CBAE5003A10A8772CEEBE5D5.taxon	etymology	Etymology. the species epithet derives from the Latin word deceptivus (= misleading) and refers to its strong resemblance to P. pillodii.	en	Vizzini, Alfredo, Consiglio, Giovanni, Adamčíková, Katarína, Setti, Ledo, Adamčík, Slavomír (2025): Pseudobaeosporoideae, a new subfamily within the Tricholomataceae for the genus Pseudobaeospora (Agaricales, Tricholomatineae) based on morphological and molecular inference. IMA Fungus 16: e 144994, DOI: 10.3897/imafungus.16.144994
94F027D8CBAE5003A10A8772CEEBE5D5.taxon	description	Description. Habit collybioid. Pileus 5 – 20 mm broad, conical campanulate to plano-convex, expanding plane with an obtuse umbo, margin at first slightly crenulated-undulate, not striate, flattened to revolute in mature specimens, surface dry, pruinose to minutely felted, not or only slightly hygrophanous, dark violaceous (Dark Bluish Violet, Blackish Violet, Plate X; Navy Blue, Plate XXI; Dusky Violet-Blue 1, Plate XXIII), with a whitish paler margin. Lamellae deeply emarginate with slightly decurrent tooth to almost free, spaced, L = 18 – 20, 1 = (1 –) 3 – 5 (– 7), rather thick, narrow to ventricose, 1.5 – 2 mm broad, purple-lilaceous (Pale Amparo Purple, Light Amparo Purple, Plate XI; Light Mallow Purple, Mallow Purple, Plate XII; Pale Vinaceous, Plate XXVII), with a concolorous, entire to slightly irregular / eroded edge. Stipe 40 – 60 × 1.5 – 2.5 mm, cylindrical, flexuous, solid to slightly hollow at maturity, not filiform, concolorous with the pileus, at first sparsely but entirely covered by minute silky whitish fibrils and flocks, then evidently fibrillose only at apex (Fig. 7 a), base radially strigose. Context violaceous. Pileus surface showing a negative reaction with a drop of 5 % KOH. Smell indistinct. Taste mild. Spore-print white. Spores (3.9 –) 4.2 – 4.6 – 5.0 (– 5.4) × (2.6 –) 3.1 – 3.4 – 3.8 (– 4.1) µm (64 / 2 / 2), Q = (1.18 –) 1.25 – 1.36 – 1.46 (– 1.63), V = (15.4 –) 20.9 – 28.9 – 36.8 (– 46.5) μm 3, broadly ellipsoid to ellipsoid, colorless, smooth, in L 4; contents granulose or with one or two oil-droplets (guttules), at first thin-walled and inamyloid, but maturing after liberation and becoming thick-walled up to 0.8 µm, dextrinoid, congophilous and cyanophilous; hilar appendix prominent, 0.8 – 1 µm long (Fig. 7 e). Basidia 15 – 19 × 6 – 7 µm, clavate, tetrasporic, with sterigmata up to 3 µm long. Hymenophoral trama regular to subregular, consisting of hyphae up to 8 µm wide, colorless in L 4. Hymenial cystidia not observed. Pileipellis: slightly gelatinized, a cutis composed of loose, 2.5 – 4 µm wide hyphae; hyphal terminations towards the pileus margin often ascending and arranged in subtrichodermic patches, subcylindrical, smooth, apically rounded, up to 8 µm wide; subpellis consisting of up to 8 µm wide cylindrical hyphae (Fig. 7 b – d). Pigment brownish, intracellular. Stipitipellis consisting of 3 – 7 µm wide, non-dextrinoid parallel-oriented cylindrical hyphae. Stipititrama similar to stipitipellis structure but hyphae up to 10 wide. Caulocystidia present (observed at stipe apex), 10 – 40 × 5 – 10 µm, usually in tufts, thin-walled, colorless, often irregularly shaped, clavate, lageniform, sinuous, lobed, sometimes catenulated, with rounded apex (Fig. 7 f). Clamp-connections absent in all parts.	en	Vizzini, Alfredo, Consiglio, Giovanni, Adamčíková, Katarína, Setti, Ledo, Adamčík, Slavomír (2025): Pseudobaeosporoideae, a new subfamily within the Tricholomataceae for the genus Pseudobaeospora (Agaricales, Tricholomatineae) based on morphological and molecular inference. IMA Fungus 16: e 144994, DOI: 10.3897/imafungus.16.144994
BE7011F5D9CC5843AB956F6FC3E3ABBA.taxon	description	Fig. 11	en	Vizzini, Alfredo, Consiglio, Giovanni, Adamčíková, Katarína, Setti, Ledo, Adamčík, Slavomír (2025): Pseudobaeosporoideae, a new subfamily within the Tricholomataceae for the genus Pseudobaeospora (Agaricales, Tricholomatineae) based on morphological and molecular inference. IMA Fungus 16: e 144994, DOI: 10.3897/imafungus.16.144994
BE7011F5D9CC5843AB956F6FC3E3ABBA.taxon	description	Selected descriptions. Jamoni and Bon (1996: 12 – 13), Bas (2003: 177 – 179), Bas et al. (2002: 32 – 35).	en	Vizzini, Alfredo, Consiglio, Giovanni, Adamčíková, Katarína, Setti, Ledo, Adamčík, Slavomír (2025): Pseudobaeosporoideae, a new subfamily within the Tricholomataceae for the genus Pseudobaeospora (Agaricales, Tricholomatineae) based on morphological and molecular inference. IMA Fungus 16: e 144994, DOI: 10.3897/imafungus.16.144994
BE7011F5D9CC5843AB956F6FC3E3ABBA.taxon	description	Description. Spores (2.9 –) 3.2 – 3.5 – 3.8 (– 4.5) × (2.6 –) 2.9 – 3.1 – 3.3 (– 3.6) μm (64 / 1 / 1), Q = (0.97 –) 1.04 – 1.15 – 1.25 (– 1.52), V = (11.3 –) 14.4 – 17.8 – 21.2 (– 28.2) μm 3, globose to subglobose, wall up to a 0.8 µm thick, smooth, colorless in L 4: hilar appendix prominent, 0.8 – 1 µm long. Basidia 16 – 18 × 4.0 – 5.0 µm, tetrasporic, subclavate to cylindrical, sterigmata up to 4 µm long; crassobasidia very rare. Hymenophoral trama regular to subregular, consisting of up to 8 µm wide hyphae, colorless in L 4. Cheilocystidia mainly clavate, hardly differentiated from the basidia, but also elongate clavate to (sub) lageniform, cylindrical or irregularly shaped, 25 – 32 × 8.3 – 10.3 µm. Pleurocistidia absent. Pileipellis: turning greenish brownish to pale green in KOH; suprapellis formed by broadly ellipsoid to broadly cylindrical elements, often emerging and then pileocystidia-like, sometimes slightly swollen, with rounded apex, smooth, up to 9 µm wide; subpellis slightly aeriferous, consisting of slightly gelatinized, smooth, subglobose to broadly cylindrical, up to 16 µm wide hyphae; pigments light brown, mainly intracellular. Stipitipellis composed of cylindrical, densely septate, up to 3 µm wide, longitudinal and parallel hyphae. Stipititrama of up to 10 – 12 µm wide hyphae, greenish in KOH. Caulocystidia at stipe apex scattered or clustered, 10 – 50 × 4 – 10 pm, filiform to narrowly clavate, subcylindrical or slender and somewhat irregular. Clamp-connections present mainly on the suprapellis hyphae and at the basidia and cheilocystidia bases.	en	Vizzini, Alfredo, Consiglio, Giovanni, Adamčíková, Katarína, Setti, Ledo, Adamčík, Slavomír (2025): Pseudobaeosporoideae, a new subfamily within the Tricholomataceae for the genus Pseudobaeospora (Agaricales, Tricholomatineae) based on morphological and molecular inference. IMA Fungus 16: e 144994, DOI: 10.3897/imafungus.16.144994
63233F0EDC7C565CAFDBF8ECB11180BC.taxon	description	Figs 4 d, g, 5, 6	en	Vizzini, Alfredo, Consiglio, Giovanni, Adamčíková, Katarína, Setti, Ledo, Adamčík, Slavomír (2025): Pseudobaeosporoideae, a new subfamily within the Tricholomataceae for the genus Pseudobaeospora (Agaricales, Tricholomatineae) based on morphological and molecular inference. IMA Fungus 16: e 144994, DOI: 10.3897/imafungus.16.144994
63233F0EDC7C565CAFDBF8ECB11180BC.taxon	description	Selected descriptions. Kühner and Romagnesi (1954: 92, as Collybia pillodii); Horak (1968: 511 – 513, as P. oligophylla); Redhead (1982: 217, as P. pillodii, no data on presence / absence of clamp-connections); Bas (2003: 192 – 193, as P. pillodii, 194 – 195 as P. oligophylla); Morozova and Popov (2013: 129 – 130, as P. pillodii, in Russian).	en	Vizzini, Alfredo, Consiglio, Giovanni, Adamčíková, Katarína, Setti, Ledo, Adamčík, Slavomír (2025): Pseudobaeosporoideae, a new subfamily within the Tricholomataceae for the genus Pseudobaeospora (Agaricales, Tricholomatineae) based on morphological and molecular inference. IMA Fungus 16: e 144994, DOI: 10.3897/imafungus.16.144994
63233F0EDC7C565CAFDBF8ECB11180BC.taxon	description	Description. Spores (2.8 –) 3.3 – 3.7 – 4.2 (– 5.6) × (2.5 –) 2.9 – 3.1 – 3.4 (– 4.2) µm (288 / 5 / 5), Q = (0.96 –) 1.07 – 1.19 – 1.32 (– 1.69), V = (10.2 –) 14.6 – 19.8 – 25.0 (– 46.1) μm 3, globose to subglobose or broadly ellipsoid in frontal and side view, wall up to 0.2 – 0.3 µm thick, smooth, colorless in L 4; hilar appendix prominent, 0.5 – 0.8 µm long (Fig. 6 c – f). Basidia 16 – 17.5 × 5 – 6 µm, mostly tetraspored but also bispored, clavate, sterigmata up to 5 µm long. Hymenophoral trama regular to subregular, consisting of up to 8 µm wide hyphae, colorless in L 4. Hymenial cystidia absent. Pileipellis suprapellis as a quite compact (dense) cutis of broadly ellipsoid up to 16 µm wide hyphae mixed with cylindrical, up to 8 µm wide hyphae, with rounded apex, slightly gelatinized, smooth, sometimes ascendant and forming small trichodermic patches; subpellis formed by broadly ellipsoid, densely septate hyphae up to 10 µm wide (Fig. 5 a – h). Pigments brownish, intracellular. Stipitipellis of cylindrical, up to 6 µm wide hyphae (Fig. 6 a). Stipititrama of up to 16 µm wide hyphae. Caulocystidia usually present, clustered, versiform, thin-walled, colorless, up to 6 µm wide (Fig. 6 b). Clamp-connections absent everywhere.	en	Vizzini, Alfredo, Consiglio, Giovanni, Adamčíková, Katarína, Setti, Ledo, Adamčík, Slavomír (2025): Pseudobaeosporoideae, a new subfamily within the Tricholomataceae for the genus Pseudobaeospora (Agaricales, Tricholomatineae) based on morphological and molecular inference. IMA Fungus 16: e 144994, DOI: 10.3897/imafungus.16.144994
724F2A2202435033861FCC8CDD1BC9E5.taxon	description	Figs 8, 9, 10	en	Vizzini, Alfredo, Consiglio, Giovanni, Adamčíková, Katarína, Setti, Ledo, Adamčík, Slavomír (2025): Pseudobaeosporoideae, a new subfamily within the Tricholomataceae for the genus Pseudobaeospora (Agaricales, Tricholomatineae) based on morphological and molecular inference. IMA Fungus 16: e 144994, DOI: 10.3897/imafungus.16.144994
724F2A2202435033861FCC8CDD1BC9E5.taxon	description	Selected descriptions. Bas and Krieglsteiner (1998: 204 – 205); Adamčík and Bas (2002: 272 – 274, as P. mutabilis); Bas (2003: 175 – 177); Chaillet et al. (2007: 5 – 7); Arauzo (2011 a: 34 – 35); Morozova and Popov (2013: 131 – 132, in Russian).	en	Vizzini, Alfredo, Consiglio, Giovanni, Adamčíková, Katarína, Setti, Ledo, Adamčík, Slavomír (2025): Pseudobaeosporoideae, a new subfamily within the Tricholomataceae for the genus Pseudobaeospora (Agaricales, Tricholomatineae) based on morphological and molecular inference. IMA Fungus 16: e 144994, DOI: 10.3897/imafungus.16.144994
724F2A2202435033861FCC8CDD1BC9E5.taxon	description	Description. Habit collybioid. Pileus 8 – 26 mm broad, conical campanulate to plano-convex, finally flattened with an obtuse umbo, margin at first slightly crenulated-undulate, not striate, flattened to revolute in mature specimens, surface dry, pruinose to minutely felted, not or only slightly hygrophanous, purplish brown (Pinkish Vinaceous, Deep Vinaceous, Plate XXVII), dark vinaceous brown to pinkish brown at centre (Dull Magenta Purple, Schoenfeld’s Purple, Indian Lake, Plate XXVI) with a paler margin (brownish pink, Pale Vinaceous, Plate XXVII). Lamellae deeply emarginate with slightly decurrent tooth to almost free, moderately crowded, L = 18 – 23, 1 = (1 –) 2 – 5, rather thick, narrow to ventricose, 2 – 3 mm broad, reddish violaceous to violaceous pink, becoming lilacinous ochraceous (Lilac, Plate XXV; Pale Rose-Purple, Rosolane Pink, Plate XXVI) to greyish ochraceous, with a concolorous, entire to slightly irregular edge. Stipe 25 – 50 × 1.2 – 3.0 mm, cylindrical, solid to slightly hollow at maturity, concolorous with lamellae, dark vinaceous red-brown, purplish brown, at first sparsely but entirely covered by minute silky whitish fibrils and flocks, then evidently fibrillose only at apex, with long whitish strigose felt hair at the base (Fig. 8 a, c, d). Context violaceous red, darkening when bruised. Pileus surface showing a bluish-green reaction with a drop of 5 % KOH. Smell indistinct. Taste mild. Spore-print white. Spores (Italian collections, mono-, bi- and tetrasporic) (3.5 –) 3.8 – 4.3 – 4.7 (– 5.8) × (2.5 –) 3.0 – 3.5 – 4.0 (– 5.0) μm (64 / 2 / 2), Q = (1.00 –) 1.10 – 1.22 – 1.35 (– 1.63), V = (13.5 –) 18.3 – 28.6 – 38.9 (– 73.8) μm 3, (Slovak collections, tetrasporic) (2.9 –) 3.2 – 3.5 – 3.8 (– 4.7) × (2.4 –) 2.9 – 3.1 – 3.3 (– 3.9) μm (160 / 3 / 3), Q = (0.96 –) 1.04 – 1.12 – 1.20 (– 1.36), V = (10.0 –) 14.2 – 17.8 – 21.3 (– 31.6) μm 3, globose, subglobose to subelliptical, sometimes larmiform (drop-like), colorless, smooth, with the tendency to agglomerate in tetrads or in greater numbers (clusters) (Figs 9 h, 10 j – l), contents granulose or with one or two oil-droplets (guttules), at first thin-walled and inamyloid, but maturing after liberation and becoming thick-walled (0.7 – 1.3 µm thick), dextrinoid, congophilous and cyanophilous; majority of spores (80 – 90 %) turns green-blue sea in L 4 (Fig. 9 h). Basidia 21 – 25 × 5.2 – 7.2 µm, clavate, sometimes constricted in the middle, in some collections mostly tetrasporic, but also 1 – 2 sporic, in others strictly tetrasporic, sterigmata up to 4 µm long. Crassobasidia (sclerobasidia) scattered, with thick dextrinoid, strongly congophilous walls (0.8 – 1 µm thick) turning green-blue sea in L 4 (Fig. 9 c). Hymenophoral trama subregular to irregular, slightly intertwined (intricate), consisting of hyphae up to 14 µm wide (Fig. 9 d). Cheilocystidia 15 – 25 × 5.8 – 9.7 × 2.4 – 5.0 µm, abundant and densely packed, mostly broadly clavate to sphaeropedunculate, sometimes lageniform, subutriform, thin-walled, colorless (Figs 9 e – f, 10 d – f). Pleurocystidia absent. Pileipellis: suprapellis consisting of loosely arranged chains of inflated pyriform to broadly clavate elements (transition between trichoderm and epithelium) up to 15 µm wide (Figs 9 a, b, 10 a – c), overlying on a subpellis made up of radially to irregularly arranged chains of largely ellipsoid to cylindrical hyphae, 7 – 10 µm wide, with minutely yellow-brown encrusting extracellular pigments and intracellular pigments which turn pale greenish blue in KOH (dried material). Pileitrama made up of non-dextrinoid cylindrical hyphae up to 10 µm wide. Stipitipellis consisting of 2 – 7 µm wide, non-dextrinoid cylindrical hyphae. Stipititrama similar to stipitipellis but hyphae up to 11 wide. Caulocystidia present (observed at stipe apex), 10 – 30 × 6.7 – 11 µm, usually clustered in tufts, thin-walled, colorless, narrowly pyriform, clavate, lageniform, sometimes irregularly shaped, often catenulated, apically rounded (Figs 9 g, 10 g – i). Clamp-connections present.	en	Vizzini, Alfredo, Consiglio, Giovanni, Adamčíková, Katarína, Setti, Ledo, Adamčík, Slavomír (2025): Pseudobaeosporoideae, a new subfamily within the Tricholomataceae for the genus Pseudobaeospora (Agaricales, Tricholomatineae) based on morphological and molecular inference. IMA Fungus 16: e 144994, DOI: 10.3897/imafungus.16.144994
94C7169C540756B3AEFA231531EFAEE7.taxon	diagnosis	Diagnosis. Basidiomes agaricoid (pileostipitate), gymnocarpic (no veils), mostly mycenoid or rarely collybioid, homogeneous (context of stipe and pileus continuous), hymenophore lamellate, lamellae adnexed, decurrent with a tooth to almost free or free, spore deposit white to whitish, basidiospores usually smooth, when mature usually thick-walled, non-amyloid, often weakly to strongly dextrinoid, basidia non-siderophilous, sometimes thick-walled and sclerified (wall 1 – 3 µm thick, crassobasidia or sclerobasidia) and dextrinoid, hymenophoral trama regular to subregular, hymenial cystidia absent or present as cheilocystidia, rarely as pleurocystidia, caulocystidia usually present, pileipellis a cutis to trichoderm or pluristratous hymeniderm / epithelium / celluloderm, pileocystidia-like elements rare, clamp-connections present or absent, hyphal system monomitic. Terrestrial, trophic mode unknown, presumably saprotrophic or forming an unspecified symbiotic interaction with vascular plants.	en	Vizzini, Alfredo, Consiglio, Giovanni, Adamčíková, Katarína, Setti, Ledo, Adamčík, Slavomír (2025): Pseudobaeosporoideae, a new subfamily within the Tricholomataceae for the genus Pseudobaeospora (Agaricales, Tricholomatineae) based on morphological and molecular inference. IMA Fungus 16: e 144994, DOI: 10.3897/imafungus.16.144994
94C7169C540756B3AEFA231531EFAEE7.taxon	type_taxon	Type of the subfamily. Pseudobaeospora Singer, Lloydia 5: 129 (1942).	en	Vizzini, Alfredo, Consiglio, Giovanni, Adamčíková, Katarína, Setti, Ledo, Adamčík, Slavomír (2025): Pseudobaeosporoideae, a new subfamily within the Tricholomataceae for the genus Pseudobaeospora (Agaricales, Tricholomatineae) based on morphological and molecular inference. IMA Fungus 16: e 144994, DOI: 10.3897/imafungus.16.144994
