Paramicrosphaeropsis salandica M.Mehrabi-Koushki, S.Artand, K.D.Hyde & Jayaward., 2022

Artand, Saeid, Mehrabi-Koushki, Mehdi, Tabein, Saeid, Hyde, Kevin D. & Jayawardena, Ruvishika S., 2022, Revision of the Microsphaeropsis complex with addition of four new Paramicrosphaeropsis L. W. Hou, L. Cai & Crous species from Zagrosian forest trees in Iran, Cryptogamie, Mycologie 20 (7), pp. 159-175 : 168

Paramicrosphaeropsis salandica M.Mehrabi-Koushki, S.Artand, K.D.Hyde & Jayaward. , sp. nov.

( Fig. 4 )

HOLOTYPE. — Iran. Khuzestan Province, Dezful, Sardasht (forest mountains of Saland-Kooh), from fruit rot of Crataegus sp. , III.2021, S. Artand (holo-, IRAN [18137 F]; ex-type cultures, IRAN [4376 C] = SCUA-Ar-SZ8 C2 ).

ADDITIONAL SPECIMENS EXAMINED. — Iran. Khuzestan Province, Dezful, Sardasht (forest mountains of Saland-kooh), from leaf spot of Quercus brantii, III.2021 , S. Artand ( IRAN [4453 C] = SCUA-Ar-SB5 A); from leaf spot of Ziziphus sp. , III.2021, S. Artand ( IRAN [4456 C] = SCUA-Ar-S4D1 and IRAN [4454 C] = SCUA-Ar-S4D2); from leaf spot of Nerium oleander, III.2021 , S. Artand ( IRAN [4455 C] = SCUA-Ar-SKH13 B); from leaf spot of an unknown shrub., III.2021, S. Artand (SCUA-Ar-S9 C 2).

ETYMOLOGY. — The name refers to the Saland-Kooh Mountains, where this fungus was collected.

MYCOBANK. — MB 841494.

DESCRIPTION

Asexual morphology

Pycnidia scattered and irregular, solitary or confluent, superficial on the medium or in aerial mycelium, globose to subglobose, covered with hyphal outgrowths, with inconspicuous ostiole, brown to dark brown with a paler wall, (107.2-)167.9-198.5 (-321.6) × (93.8-)153-174.9(-268) µm, (x ± SD = 184.4 ± 7.5 × 163.9 ± 5.6 µm, n = 50). Pycnidial wall pseudoparenchymatous, composed of isodiametric to elongated cells, 3-6 layers, pale brown to brown, outer layers darker. Conidiogenous cells phialidic, hyaline, smooth-walled, discrete, ampulliform or doliiform.Conidia mostly ovoid to obpyriform but also irregular in shape, pale brown to brown, straight or sometime very slightly curved, smooth- and thin-walled, guttulate, aseptate, (4.7-)5.9-6.5(-9.5) × (3.2-)4.6-5.2(-6.8) µm, (x ± SD = 6.2 ± 0.1 × 4.9 ± 0.1 µm, n = 50). Chlamydospores and swelling cells not observed.

Sexual morphology

Not observed.

Figures

FIG. 4. — Paramicrosphaeropsis salandica M.Mehrabi-Koushki, S.Artand, K.D.Hyde & Jayaward., sp. nov. (holo-, IRAN[18137F]): A, B, colony on OA (eightdays and old); C, D, colony on PDA (eight-days and old); E-G pycnidia; H, pycnidal wall; I, conidiogenous cells; J, conidia. Scale bars: E, 500 µm; F, 200 µm; G, 105 µm; H-J, 20 µm.