Pleosporales » Paradictyoarthriniaceae » Paradictyoarthrinium

Paradictyoarthrinium diffractum

Paradictyoarthrinium hydei N.G. Liu & J.K. Liu, in Liu, Luo, Liu, Cheewangkoon & Chaiwat, Phytotaxa 338(3): 290 (2018)

Index Fungorum number: IF554082    Facesoffungi number: FoF 03933


Saprobic on dead decaying wood. Sexual morph: Undetermined. Asexual morph: Colonies on natural substrate superficial, black, scattered, gregarious, powdery. Mycelium mostly immersed, composed of pale brown to dark brown, septate, branched, verruculose, 1.5−3.5 μm wide hyphae. Conidiophores 2.5–6 μm diam., macronematous, rarely micronematous, short, green, erect to slightly curved, slightly flexuous, branched, slightly constrict at the septa, uneven, thick-walled. Conidiogenous cells monoblastic, integrated, terminal, determinate, dark green. Conidia (12–) 15–28 × (8–) 14–25μm ( = 18 × 16 μm, n = 30), solitary or developing in chains, muriform, deeply constricted at the septa, subglobose to ellipsoidal to irregular, green or dark green, turning brown to dark brown on maturity, verrucose.


Culture characters: Conidia germinated on WA (Water Agar) within 24 h. Germ tubes produced from all round. Colonies on PDA reaching about 50 mm diam. after 10 days in the dark at 25 °C. Colonies are circular, grey and dense, with entire edge.


Material examined: Thailand, Chiang Mai Province, on decaying wood, 27 Sep 2016, C.G. Lin, Lin05 (MFLU 17-2652, holotype); ex-type living culture MFLUCC 17-2512.

Figure X. Paradictyoarthrinium hydei (MFLU 17-2652, holotype) a, b Colonies on wood. c Germinating conidium. d–h Conidiophores and conidia. i–m Conidia. Scale bars: c–g, i–m = 10 μm, h = 20 μm.


Reference: Hyde KD, de Silva NI, Jeewon R, Bhat DJ, et al. 2020 – AJOM new records and collections of fungi: 1-100. Asian Journal of Mycology 3(1), 22–294.


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Thailand Science Research and Innovation (TSRI),

project entitled:

"The future of specialist fungi in a changing climate: baseline data for generalist and specialist fungi associated with ants Rhododendron species and Dracaena species"

(Grant No. DBG6080013)

"Impact of climate change on fungal diversity and biogeography in the Greater Mekong Sub-region"

(Grant No. RDG6130001)


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  • Honghe County 654400, Yunnan, China

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