Auxarthronopsis pedicellaris Z.F. Zhang & L. Cai, sp. nov. 2020
Index Fungorum number: 556415；Facesoffungi number: FoF 08434
Holotype: CHINA, Chongqing, Wulong, Erwang Cave, N 29.585°, E 108.001°, on rock, May 2016, Z.F. Zhang, HMAS 248012 (holotype designated here), ex-type living culture CGMCC3.19318 = LC12575; ibid., LC12576.
Morphological description
Hyphae hyaline, septate, branched, smooth, 1.5–3.0 μm diam. Asexual morph Conidiophore-like stalk cylindrical, erect, straight or curved, septate, branched, smooth, thick-walled, hyaline, various in length, 1.0–2.5 μm wide. Arthroconidia abundant, lateral or terminal, stalked, occasionally sessile, unicellular, pyriform, ellipsoidal or globose with truncate base, smooth, hyaline, 3.5–6.5 × 2.0–3.5 µm ( x̄ ± SD = 4.8 ± 0.73 × 2.7 ± 0.34 µm, n = 50). Sexual morph not observed.Culture characteristics—Colonies on PDA attaining 26–32 mm diam. after 4 weeks, flat, felty, annular, margin dentate, floralwhite (30A2). Reverse floralwhite (30A2) to bisque (7A2). Colonies on OA attaining 30–33 mm diam. after 4 weeks, flat, margin lobate, white. Reverse white. Colonies on SNA attaining 26–29 mm diam. after 4 weeks, margin entire, white, aerial mycelia sparse. Reverse white. Sporulation within 3 weeks.
Habitat: on rock.
Distribution: Chongqing, Wulong, Erwang Cave, China.
GenBank Accession:
Notes: Auxarthronopsis pedicellaris is phylogenetically allied to A. bandhavgarhensis, A. guizhouensis and A. globiasca (Fig. 15), but can be distinguished by its lateral or terminal conidia and absence of intercalary conidia.
Reference: Zhi‑Feng Zhang ,Shi‑Yue Zhou ,Lily Eurwilaichitret al.
Auxarthronopsis pedicellaris (from ex-holotype CGMCC3.19318). a–c Upper and reverse views of cultures on PDA, OA and SNA 4 weeks after inoculation; d–h stalk-bearing arthroconidia; i arthroconidia. Scale bars: d–i 10 μm
