Pleosporales » Melanommataceae » Phragmocephala

Phragmocephala garethjonesii

Phragmocephala garethjonesii

H.Y. Su, Udayanga & K.D. Hyde, Phytotaxa 226(3): 201–216 (2015)

 

Classification: Ascomycota-Pezizomycotina-Dothideomycetes-Pleosporales- Melanommataceae-Phragmocephala

 

Host species: Trachycarpus fortunei (Xiong et al. 2025)

 

Known distribution: China (Su et al. 2015, Xiong et al. 2025).

 

IF Number: IF551025      Mycobank Number: 551025     FOF Number: FoF00574

 

Description

Saprobic on dead petiole of Trachycarpus fortunei. Sexual morph Undetermined. Asexual morph: Hyphomycetes. Colonies superficial, scattered, glistening, dark brown. Mycelium partly immersed, composed of septate, dark brown, smooth hyphae. Conidiophores 60–110 × 4.5–8 μm (x̅ = 94.5 × 7 μm, n = 20), mononematous, macronematous, in fascicles, septate, unbranched, erect, dark brown at the base, pale brown at apex, 4–6-septate. Conidiogenous cells monoblastic, light brown, terminal, integrated, elongated, pale brown. Conidia 30–33 × 19–21 μm (x̅ = 32 × 20 μm, n = 20), 5–6 septate, dark brown, paler at the apex and base, with dark brown middle cells; rounded at apex, truncate at base, ellipsoidal to subglobose; after release, the conidia bear part of the membranous conidiogenous cell; Conidial secession schizolytic.

Culture conditions: Colony on PDA reaching 30 mm diameter. After 2 weeks in an incubator under dark conditions at 25°C, white to grey with yellow tone, strong radiations outwards on forward side; reverse brown to white.

 

 

Phragmocephala garethjonesii (MHZU 24-0495, new host record). a, b Appearance of sporadithia on host substrate. c Conidia attached to conidiophore, and conidia. d, e Conidiophore. f–h Conidia. i Germinated conidium. j Culture on PDA from above and reverse. Scale bars c = 40 μm, d–i = 10 μm.

 

Reference

Su HY, Udayanga D, Luo ZL, Manamgoda DS, et al. 2015 – Hyphomycetes from aquatic habitats in Southern China: Species of Curvularia (Pleosporaceae) and Phragmocephala (Melanommataceae). Phytotaxa 226, 201–216.

Xiong YR, Manawasinghe IS, Ausana Mapook 2025 – Addition to Tropical palm fungi: Ten new Records from China and Thailand. Asian Journal of Mycology

 

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