Fungalpedia – Note 700, Symphaeophyma
Symphaeophyma Speg.
Citation when using this data: D. S. Marasinghe et al. 2023 (in prep.) – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank., Fig 1
Classification: Parmulariaceae, Asterinales, Dothideomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi
Colonies epiphyllous and parasitic on living leaves. Sexual morph: Ascomata superficial, solitary to gregarious, flattened, blackened, orbicular to elliptical, papillate, loculate, pulvinate, sinuate carbonaceous, irregularly radially openings from the center, comprising radiating hyphae at the margins. Hamathecium of hyaline, filamentous pseudoparaphyses. Asci 8-spored, bitunicate, hyaline, cylindrical to clavate, pedicellate, ocular chamber present. Ascospores 1–2-seriate, 1-septum, guttulate, subclavate, initially hyaline becoming dark brown at maturity, constricted in the middle instead of obtuse on both sides, smooth-walled. Asexual morph: 4-radiated multiseptate conidia (Spegazzini 1912).
Note: Spegazzini (1912) introduced Symphaeophyma to accommodate S. subtropicale, collected from a tropical region. This species was reported as pathogenic on living leaves of Pouteria salicifolia (Inacio and Cannon 2008; Wijayawardene et al. 2018, 2020). Symphaeophyma is characterized by superficial, circular or elliptical, pulvinate, sinuate, black ascomata with thick internal parts (Inacio and Cannon 2008).
Type species Symphaeophyma subtropicale Speg., Anal. Mus. nac. Hist. nat. B. Aires 23: 97 (1912)
Other accepted species: species Fungorum – search Symphaeophyma.
Figure 1 – Symphaeophyma subtropicale. a Colonies on the surface of leaf. b Ascomata. c Upper wall. d Section through ascomata. e Ascus with pesu- doparaphyses. f Ascospores.
Redrawn from Spegazzini (1912)
References
Inácio CA, Cannon PF 2008 – The genera of the Parmulariaceae. CBS biodiversity series, vol 8. CBS Fungal Biodiversity Centre, Utrecht.
Spegazzini C 1912 – Mycetes argentinenses (Series VI). Anales del Museo Nacional de Historia Natural de Buenos Aires 23:1–146.
Entry by
Diana Sandamali Marasinghe, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand, Mushroom Research Foundation, 128 M.3 Ban Pa Deng T. Pa Pae, A. Mae Taeng, Chiang Mai, 50150, Thailand
Published online 29 August 2023