Chaetosphaeriales » Chaetosphaeriaceae » Pseudolachnella

Pseudolachnella brevifusiformis

Pseudolachnella brevifusiformis A. Hashim. & Kaz. Tanaka, in Li et al., Fungal Diversity 78: [74] (2016)

Facesoffungi number: FoF 02029

 

Saprobic on dead sheath of Pleioblastus linearis. Sexual morph undetermined. Asexual morph Conidiomata 230900 µm diam., 170350 µm high, stromatic, solitary or gregarious, initially conical, then subcupulate, subglobose to oval, unilocular, dark brown to black, setose. Conidiomatal setae up to 100 µm long, numerous, restricted to the margin of the conidiomata, at first incurved over the conidial hymenium, then divergent, cylindrical, straight or slightly curved, unbranched, aseptate, pale brown to dark brown, thick-walled, acute and narrowed at apex. Conidiomatal wall 1035 µm wide, composed of thick-walled, brown cells of textura intricata to textura epidermoidea. Conidiophores 7.514 × 1.614 µm, formed from inner layers of the conidiomata, hyaline, cylindrical to subcylindrical, broader at base, branched, smooth-walled. Conidiogenous cells 72 × 24 µm, hyaline, enteroblastic, phialidic, cylindrical to lageniform, with periclinal thickening in the collarette zone, indeterminate, usually integrated, thick- and smooth-walled. Conidia 315 × 34.5 µm ( = 12 × 4 µm; n = 30), hyaline, circular or cylindrical, rounded at apex, truncate and narrow at base, 03-septate, straight, guttulate, smooth, bearing appendages at both ends; apical appendage 3–6 µm long, 26-unbranched, flexuous, centric or excentric, arising from the top of the apical cell or adjacent to apical cell, basal appendage 3–6 µm long, 2–4-unbranched.

 

Material examined: Japan, Okinawa, Kunigami, Yona, Mt. Fuenchiji, on dead sheath of Pleioblastus linearis, 19 May 2015, K. Tanaka, A. Hashimoto, M. Matsumura, KT 3536 (HHUF 30495, holotype); KT 3537 (HHUF 30496, paratype).

Pseudolachnella brevifusiformis (HHUF 30495, holotype, HHUF 30496, paratype) a–c Herbarium package and specimens. d, e Appearance of black conidiomata on the host. f Conidiomatal setae. g Vertical section of conidioma. h, i Section of peridium. j–m Conidiophores, conidiogenous cells and developing conidia, n–s Conidia. Scale bars fg = 100 µm, hi = 20 µm, js = 5 µm.

 

 

References:

 

Li WJ, McKenZie EHC, Liu JK, Bhat DJ, Dai DQ, Caporesi E, Tian Q, Maharachcikumbura SSN, Luo ZL, Shang QJ, Zhang JF, Tangthirasunun N, Karunarathna SC, Xu JC, Hyde KD (2020) Taxonomy and phylogeny of hyaline-spored coelomycetes. Fungal Diversity 100: pages279–801.

 

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