Parmulariopsis
Parmulariopsis Petr., Sydowia 8(1-6): 186 (1954).
Index Fungorum number: IF 3747; Facesoffungi number: FoF 02325, 1 morphological species (Species Fungorum 2022), no molecular data available.
Parasitic on lower surface of leaves. Sexual morph: Ascostromata solitary to gregarious, superficial, elliptical to oblong, or long fusiform, or irregular, shield-like, black, carbonaceous, fated, with ridges radiating from the centre to the outer rim; ridges containing elongated locules, which open by a longitudinal slit and contain numerous asci, cells of ascostromata thick-walled and elongate and composed of black, amorphous tissues in the stromatic crust. Locules in vertical section subglobose, immersed in ascostromata. Peridium of ascostromata 30–40 µm thick, comprises of several black layers, composed of dark brown cells of textura prismatica. Cells between locules 30–55 µm thick, composed of brown to hyaline cells of textura angularis. Hamathecium comprising interthecial, hyaline to brown, septate, filamentous pseudoparaphyses with swollen and brown tips. Asci 8-spored, thick-walled, bitunicate, clavate to subglobose, short-pedicellate, with a distinct ocular chamber. Ascospores irregularly arranged, ellipsoidal, with larger and rounder upper cells, with narrow and longer lower cells, hyaline, uniseptate, constricted at the septum, smooth-walled. Asexual morph: Unknown (adapted from Hongsanan et al. 2020b).
Type species: Parmulariopsis pulchella Petr.
Notes: Parmulariopsis is characterised by solitary to gregarious ascostromata, clavate to subglobose asci and ellipsoidal, hyaline, uniseptate ascospores. Parmulariopsis resembles Parmularia in having elliptical to oblong, or long fusiform stromata, whereas Parmularia has rounded stromata. Petrak (1954) designated no type specimen for P. pulchella. Inácio and Cannon (2008) studied the isotypes of P. pulchella from S and K herbaria. Hongsanan et al. (2020b) examined a specimen in W labelled with the same collecting information as in the original article and considered that specimen to be the holotype. Molecular data for Parmulariopsis is lacking. Fresh collections and DNA sequence data are required to support the taxonomic placement of the genus in Parmulariaceae.
Recent News
Recent paper to be publishedRecent Genus
NothocladosporiumPhillipsiella
Curreya
Recent Species
Nothocladosporium syzygiiPhillipsiella atra
Curreya conorum
