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Figure. Pseudophialophora magnispora (CM14RG38). A–C. Conidiophores and conidia. Scale bars: A–C = 10 µm.

Pseudophialophora magnispora J. Luo & N. Zhang.

MycoBank: MB811709.

Asexual state phialophora-like. On CMA, hyphae branched, septate, hyaline to yellowish, smooth. Conidiophores micronematous, single or branched. Conidiogenous cells phialidic, curved, hyaline to yellowish, 13–30 × 2.5–4 µm. Conidia aggregated in slimy heads, ellipsoidal, straight or slightly curved, aseptate, hyaline, smooth, 8–12 × 3–5 µm. Sexual state unknown.

Colonies on PDA 2.6 cm diam after 7 days at 25 °C in dark; surface velvety to floccose, yellow green; aerial mycelium yellowish; reverse peacock green. Colonies on CMA 2.4 cm after 7 days at 25 °C in dark; surface light green-yellow; aerial mycelium sparse; reverse pale green-yellow (Description from Luo et al., 2015b).

Typification: Holotype RUTPPCM14RG38. Ex-holotype culture CM14RG38.

Gene sequences: KP769819 (18S), KP769835 (ITS), KP769827 (28S), KP784810 (MCM7), KP784818 (RPB1), KP784826 (TEF1).

Specimens examined: USA, New Jersey, Colliers Mills, N40 04.093, W74 26.598, alt. 42 m, from roots of Dichanthelium acuminatum, 4 Jun. 2014, J. Luo and N. Zhang, CM14RG38 (RUTPPCM14RG38), CM14RG50.

Hosts/substrates: From roots of Dichanthelium acuminatum (Poaceae).

Distribution: USA (New Jersey).

Copyright 2022 by The American Phytopathological Society. Reproduced, by permission, from Luo, J., and Zhang, N. 2022. The Rice Blast Fungus and Allied Species: A Monograph of the Fungal Order Magnaporthales (https://my.apsnet.org/APSStore/Product-Detail.aspx?WebsiteKey=2661527A-8D44-496C-A730-8CFEB6239BE7&iProductCode=46826). American Phytopathological Society, St. Paul, MN.

Figure. Pseudophialophora dichanthii (WSF14RG82). A–C. Conidiophores and conidia. Scale bars: A–C = 10 µm.

Pseudophialophora dichanthii J. Luo & N. Zhang.

MycoBank: MB811708.

Asexual state phialophora-like. On CMA, hyphae branched, septate, hyaline to yellowish, smooth. Conidiophores micronematous, single or branched. Conidiogenous cells phialidic, curved, hyaline to yellowish, 6–20 × 2–3.5 µm. Conidia aggregated in slimy heads, oblong ellipsoidal to ellipsoidal, straight or slightly curved, aseptate, hyaline, smooth, 4–8 × 2.5–3.5 µm. Sexual state unknown.

Colonies on PDA 2.5 cm diam after 7 days at 25 °C in dark; surface velvety, light yellow-green; aerial mycelium yellowish; reverse calliste green. Colonies on CMA 2.3 cm after 7 days at 25 °C in dark; surface light green-yellow; aerial mycelium sparse; reverse pale green-yellow (Description from Luo et al., 2015b).

Typification: Holotype RUTPPWSF14RG82. Ex-holotype culture WSF14RG82.

Gene sequences: KP769822 (18S), KP769838 (ITS), KP769830 (28S), KP784813 (MCM7), KP784821 (RPB1), KP784829 (TEF1).

Specimens examined: USA, New Jersey, Wharton State Forest, N 39 46.136, W 074 40.885, alt. 40 m, from roots of Dichanthelium acuminatum, 26 Jun. 2014, J. Luo and N. Zhang, WSF14RG12, WSF14RG41, WSF14RG70, WSF14RG72, WSF14RG82 (RUTPPWSF14RG82).

Hosts/substrates: From roots of Dichanthelium acuminatum (Poaceae).

Distribution: USA (New Jersey).

Copyright 2022 by The American Phytopathological Society. Reproduced, by permission, from Luo, J., and Zhang, N. 2022. The Rice Blast Fungus and Allied Species: A Monograph of the Fungal Order Magnaporthales (https://my.apsnet.org/APSStore/Product-Detail.aspx?WebsiteKey=2661527A-8D44-496C-A730-8CFEB6239BE7&iProductCode=46826). American Phytopathological Society, St. Paul, MN.

Figure. Pseudophialophora angusta (WSF14RG40). A–C. Conidiophores and conidia. Scale bars: A–C = 10 µm.

Pseudophialophora angusta J. Luo & N. Zhang.

MycoBank: MB811707.

Asexual state phialophora-like. On CMA, hyphae branched, septate, hyaline to yellowish, smooth. Conidiophores micronematous, single or branched. Conidiogenous cells phialidic, curved, hyaline to yellowish, 7–25 × 2–3 µm. Conidia aggregated in slimy heads, oblong ellipsoidal, straight or slightly curved, aseptate, hyaline, smooth, 7.5–10 × 1.5–2.5 µm. Sexual state unknown.

Colonies on PDA 2.3 cm diam after 7 days at 25 °C in dark; surface velvety, sulphur yellow; aerial mycelium yellowish; reverse pale greenish yellow. Colonies on CMA 1.9 cm after 7 days at 25 °C in dark; surface sulphur yellow; aerial mycelium sparse; reverse light greenish yellow (Description from Luo et al., 2015b).

Typification: Holotype RUTPPWSF14RG40. Ex-holotype culture WSF14RG40.

Gene sequences: KP769825 (18S), KP769841 (ITS), KP769833 (28S), KP784816 (MCM7), KP784824 (RPB1), KP784832 (TEF1).

Specimens examined: USA, New Jersey, Wharton State Forest, N 39 46.136, W 074 40.885, alt. 40 m, from roots of Dichanthelium acuminatum, 26 Jun. 2014, J. Luo and N. Zhang, WSF14RG40 (RUTPPWSF14RG40).

Hosts/substrates: From roots of Dichanthelium acuminatum (Poaceae).

Distribution: USA (New Jersey).

Copyright 2022 by The American Phytopathological Society. Reproduced, by permission, from Luo, J., and Zhang, N. 2022. The Rice Blast Fungus and Allied Species: A Monograph of the Fungal Order Magnaporthales (https://my.apsnet.org/APSStore/Product-Detail.aspx?WebsiteKey=2661527A-8D44-496C-A730-8CFEB6239BE7&iProductCode=46826). American Phytopathological Society, St. Paul, MN.

Figure. Magnaporthiopsis panicorum (CM2s8). A–C. Conidiophores and conidia. Scale bars: A–C = 10 µm.

Magnaporthiopsis panicorum J. Luo & N. Zhang.

MycoBank: MB807084.

Asexual state phialophora-like. On CMA, hyphae branched, septate, hyaline to light brown, smooth, 2–4.5 µm diam. Conidiophores micronematous, solitary, erect, straight or curved, unbranched or sparsely branched, hyaline, smooth. Conidiogenous cells phialidic, hyaline, straight or slightly curved, 5–30.5 × 2–3.5 µm. Conidia aggregated in slimy heads, ovoid, straight or slightly curved, aseptate, hyaline, smooth, 7.5–11.5 × 3.5–5 µm. Sexual state unknown.

Colonies on PDA 4.8 cm diam after 7 days at 25 °C in dark; surface floccose, parrot green; aerial mycelium yellowish; reverse cedar green. Colonies on CMA reaching 5.5 cm after 7 days in dark at 25 °C; surface pale yellow-green; aerial mycelium sparse; reverse pale yellow-green (Description from Luo et al., 2014).

Typification: Holotype RUTPPCM2s8. Ex-holotype culture CM2s8.

Gene sequences: KF689593 (18S), KF689643 (ITS), KF689633 (28S), KF689603 (MCM7), KF689613 (RPB1), KF689623 (TEF1).

Genome sequences: SRX798626 (transcriptome).

Specimens examined: USA, New Jersey, Colliers Mills, N40 04.093, W74 26.598, 42 m, from roots of Panicum, 30 Aug. 2012, J. Luo and N. Zhang, RUTPPCM2s8, RUTPPCM7m9, RUTPPCM9m11, RUTPPCM10s2.

Hosts/substrates: From roots of Panicum and other Poaceae.

Distribution: USA (New Jersey).

Copyright 2022 by The American Phytopathological Society. Reproduced, by permission, from Luo, J., and Zhang, N. 2022. The Rice Blast Fungus and Allied Species: A Monograph of the Fungal Order Magnaporthales (https://my.apsnet.org/APSStore/Product-Detail.aspx?WebsiteKey=2661527A-8D44-496C-A730-8CFEB6239BE7&iProductCode=46826). American Phytopathological Society, St. Paul, MN.

Figure. Pseudophialophora schizachyrii (AL3s4). A–C. Conidiophores and conidia. Scale bars: A–C = 10 µm.

Pseudophialophora schizachyrii J. Luo & N. Zhang.

MycoBank: MB807083.

Asexual state phialophora-like. On CMA, hyphae branched, septate, hyaline to yellowish, smooth. Conidiophores micronematous, single or branched. Conidiogenous cells phialidic, curved, hyaline to yellowish, 3–23 × 2.5–3.7. Conidia aggregated in slimy heads, ellipsoidal, straight or slightly curved, aseptate, hyaline, smooth, 5.5–8 × 2.5–3.5 µm. Sexual state unknown.

Colonies on PDA 2.2 cm diam after 7 days at 25 °C in dark; surface velvety, sulphine yellow; aerial mycelium yellowish; reverse orange citrine. Colonies on CMA 1.8 cm after 7 days at 25 °C in dark; surface aniline yellow; aerial mycelium sparse; reverse pyrite yellow (Description from Luo et al., 2014).

Typification: Holotype RUTPPAL3s4. Ex-holotype culture AL3s4.

Gene sequences: KF689600 (18S), KF689650 (ITS), KF689640 (28S), KF689610 (MCM7), KF689620 (RPB1), KF689630 (TEF1).

Genome sequences: SRX798637 (transcriptome).

Specimens examined: USA, New Jersey, Assunpink Lake, N40 12.962, W74 30.527, 40 m, from roots of Poaceae, 30 Aug. 2012, J. Luo and N. Zhang, RUTPPAL3s4; ibid., from roots of Schizachyrium, 30 Aug. 2012, J. Luo and N. Zhang, RUTPPAL2m1.

Hosts/substrates: From roots of Schizachyrium and other species of Poaceae.

Distribution: USA (New Jersey).

Copyright 2022 by The American Phytopathological Society. Reproduced, by permission, from Luo, J., and Zhang, N. 2022. The Rice Blast Fungus and Allied Species: A Monograph of the Fungal Order Magnaporthales (https://my.apsnet.org/APSStore/Product-Detail.aspx?WebsiteKey=2661527A-8D44-496C-A730-8CFEB6239BE7&iProductCode=46826). American Phytopathological Society, St. Paul, MN.

Figure. Pseudophialophora panicorum (CM3m7). A–C. Conidiophores and conidia. Scale bars: A–C = 10 µm.

Pseudophialophora panicorum J. Luo & N. Zhang.

MycoBank: MB807082.

Asexual state phialophora-like. On CMA, hyphae branched, septate, hyaline to yellowish, smooth. Conidiophores micronematous, single or branched. Conidiogenous cells phialidic, curved, hyaline to yellowish, 4–22.5 x 1.5–2.7 µm. Conidia aggregated in slimy heads, oblong ellipsoidal, straight or slightly curved, aseptate, hyaline, smooth, 7.5–10.5 x 2.5–3.5 µm. Sexual state unknown.

Colonies on PDA 2.6 cm diam after 7 days at 25 °C in dark; surface velvety, javel green; aerial mycelium yellowish; reverse oil green. Colonies on CMA 3 cm after 7 days at 25 °C in dark; surface pale green-yellow; aerial mycelium sparse; reverse pale greenish yellow (Description from Luo et al., 2014).

Typification: Holotype RUTPPCM3m7. Ex-holotype culture CM3m7.

Gene sequences: KF689602 (18S), KP769835 (ITS), KF689642 (28S), KF689612 (MCM7), KF689622 (RPB1), KF689632 (TEF1).

Genome sequences: SRX798635 (transcriptome).

Specimens examined: USA, New Jersey, Colliers Mills, N40 04.093, W74 26.598, 42 m, from roots of Poaceae, 30 Aug. 2012, J. Luo and N. Zhang, RUTPPCM3m7; ibid., from roots of Panicum, 30 Aug. 2012, J. Luo and N. Zhang, RUTPPCM9s6.

Hosts/substrates: From roots of Panicum and other species of Poaceae.

Distribution: USA (New Jersey).

Copyright 2022 by The American Phytopathological Society. Reproduced, by permission, from Luo, J., and Zhang, N. 2022. The Rice Blast Fungus and Allied Species: A Monograph of the Fungal Order Magnaporthales (https://my.apsnet.org/APSStore/Product-Detail.aspx?WebsiteKey=2661527A-8D44-496C-A730-8CFEB6239BE7&iProductCode=46826). American Phytopathological Society, St. Paul, MN.

Figure. Pseudophialophora eragrostis (CM12m9). A–C. Conidiophores and conidia. Scale bars: A–C = 10 µm.

Pseudophialophora eragrostis J. Luo & N. Zhang.

MycoBank: MB807081.

Asexual state phialophora-like. On CMA, hyphae branched, septate, hyaline to yellowish, smooth. Conidiophores micronematous, single or branched. Conidiogenous cells phialidic, curved, hyaline to yellowish, 3–19 × 2–3.7 μm. Conidia aggregated in slimy heads, oblong ellipsoidal to ellipsoidal, straight or slightly curved, aseptate, hyaline, smooth, 7.5–10.5 × 2–3.5 μm. Sexual state unknown.

Colonies on PDA 2.7 cm diam after 7 days at 25 °C in dark; surface velvety to floccose, grass green; aerial mycelium yellowish; reverse cossack green. Colonies on CMA 1.6 cm after 7 days at 25 °C in dark; surface Scheele’s green; aerial mycelium sparse; reverse peacock green (Description from Luo et al., 2014).

Typification: Holotype RUTPPCM12m9. Ex-holotype culture CM12m9.

Gene sequences: KF689598 (18S), KF689648 (ITS), KF689638 (28S), KF689608 (MCM7), KF689618 (RPB1), KF689628 (TEF1).

Genome sequences: SRX798634 (transcriptome).

Specimens examined: USA, New Jersey, Colliers Mills, from roots of Eragrostis, 30 Aug 2012, J. Luo and N. Zhang, CM12m9 (RUTPPCM12m9); ibid., from roots of Poaceae, 30 Aug 2012, J. Luo and N. Zhang, CM20m5-2.

Hosts/substrates: From roots of Poaceae.

Distribution: USA (New Jersey).

Copyright 2022 by The American Phytopathological Society. Reproduced, by permission, from Luo, J., and Zhang, N. 2022. The Rice Blast Fungus and Allied Species: A Monograph of the Fungal Order Magnaporthales (https://my.apsnet.org/APSStore/Product-Detail.aspx?WebsiteKey=2661527A-8D44-496C-A730-8CFEB6239BE7&iProductCode=46826). American Phytopathological Society, St. Paul, MN.

Figure. Magnaporthiopsis meyeri-festucae (FF2). A–D. Conidiophores and conidia. Scale bars: A–D = 10 µm.

Magnaporthiopsis meyeri-festucae J. Luo & N. Zhang.
MycoBank: MB821495.

Asexual state phialophora-like. On CMA, hyphae branched, septate, hyaline to light brown, smooth, 2–4.5 µm diam. Conidiophores macronematous, solitary, erect, straight or curved, branched, brown, smooth. Conidiogenous cells phialidic, light brown, straight or slightly curved, 7.5–14.5 × 2.5–5 µm. Conidia aggregated in slimy heads, ellipsoidal, straight or slightly curved, aseptate, hyaline, smooth, 3–5 × 1–2.5 µm. Sexual state unknown.

Colonies on PDA 4.5 cm diam after 7 days at 25 °C in dark; surface floccose, warbler green; aerial mycelium yellowish to brownish; reverse olive-green. Colonies on CMA reaching 5.3 cm after 7 days in dark at 25 °C; surface sulphur yellow; aerial mycelium sparse; reverse light greenish-yellow (Description from Luo et al., 2017).

Typification: Holotype RUTPPFF2. Ex-holotype culture CBS143324 (FF2).

Gene sequences: MF178140 (18S), MF178146 (ITS), MF178151 (28S), MF178156 (MCM7), MF178162 (RPB1), MF178167 (TEF1).

Materials examined: USA, Maryland, Crofton, from roots of Agrostis (bentgrass)/Poa annua (annual bluegrass) mix, 30 Jul. 2019, S. Tirpak and R. Buckley, RUTPPD30900-1, RUTPPD30901-1; Massachusetts, Amherst, from roots of Festuca rubra var. rubra (strong creeping red fescue), 1 Aug. 2018, Michelle DaCosta, RUTPPscr7-2; ibid., Festuca rubra var. falax (Chewing’s fescue), 1 Aug. 2018, M. DaCosta, RUTPPC39-3, RUTPPC39-6, RUTPPC39-8; New Jersey, Bernardsville, from roots of Poa annua (annual bluegrass) mix, 15 Aug. 2019, S. Tirpak and R. Buckley, D31094-1, Hamburg, from roots of Agrostis (bentgrass)/Poa annua (annual bluegrass) mix, 30 Jul. 2019, S. Tirpak and R. Buckley, D30885-3;ibid., New Brunswick, Hort Farm 2, from roots of Festuca brevipila (‘Beacon’ hard fescue), 26 Jun. 2013, A. Grimshaw, RUTPPFF2, RUTPPAG2); ibid., from roots of Festuca rubra var. rubra (strong creeping red fescue), 17 Jun. 2016, P.L. Vines and L. Hoffman, RUTPPSCR9, RUTPPSCR11, RUTPPSCR12; ibid., from roots of Festuca brevipila (‘Beacon’ hard fescue), 17 Jun. 2016, P.L. Vines and L. Hoffman, RUTPPH11, RUTPPH18, RUTPPH21, RUTPPH31, RUTPPH35, RUTPPH43.

Hosts/substrates: From roots of Agrostis, Festuca, and Poa annua (Poaceae).

Distribution: USA (Maryland, Massachusetts, New Jersey).

Notes: This species causes summer patch disease on fine fescue turfgrasses (Luo et al. 2017).

Copyright 2022 by The American Phytopathological Society. Reproduced, by permission, from Luo, J., and Zhang, N. 2022. The Rice Blast Fungus and Allied Species: A Monograph of the Fungal Order Magnaporthales (https://my.apsnet.org/APSStore/Product-Detail.aspx?WebsiteKey=2661527A-8D44-496C-A730-8CFEB6239BE7&iProductCode=46826). American Phytopathological Society, St. Paul, MN.