Fungalpedia – Note 688, Parmulariopsis
Parmulariopsis Petr.
Citation when using this data: D. S. Marasinghe et al. 2023 (in prep.) – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank.
Classification: Parmulariaceae, Asterinales, Dothideomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi
Colonies parasitic or epiphytic on leaves. Sexual morph: Ascostromata superficial, blackened, solitary to gregarious, elliptical to oblong, or long fusiform, or irregular, shield-like, brittle carbonaceous, flattened, with ridges radiating from the centre to the outer rim; with elongated locules opening by a longitudinal slit. Peridium comprises several black layers, composed of dark brown cells of textura prismatica and brown to hyaline cells of texture angularis. Hamathecium with hyaline to brown, septate, filamentous, mucous-glutinous pseudoparaphyses a forming a brown to yellowish epithelium over the asci. Asci 8-spored, 2–3-seriate, thick-walled, bitunicate, clavate to subglobose, or oblong-ovoid or oblong-clavate, short-pedi- cellate, broadly rounded on both sides with a distinct ocular chamber. Ascospores oblong or clavate-oblong ellipsoidal, hyaline, with larger and rounder upper cells, with narrow and longer lower cells, 1-septum, constricted at the septum, smooth-walled. Asexual morph: Undetermined (Adapted from Petrak 1954; Hongsanan et al. 2020a).
Note: Petrak (1954) established Parmulariopsis to accommodate P. pulchella. Parmulariopsis pulchella was recorded from leaves of Joinvillea sp. in Malaysia. Parmulariopsis is characterized by having a large, black shield-like ascomata with locules radiating from the centre (Inácio and Cannon 2008; Hongsanan et al. 2020a). It is morphologically similar to Parmularia in having carbonaceous ascomata with longitudinal ridges, but Parmulariopsis has elliptical to oblong, or long fusiform stromata, whereas Parmularia has orbicular ascomata.
Type species: Parmulariopsis pulchella Petr., Sydowia 8(1–6): 187 (1954)
Other accepted species: species Fungorum – search Parmulariopsis.
References
Petrak F 1954 – Beitrage zur pilzflora Pakistans. Sydowia 8:162–185.
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