Fungalpedia – Note 1616, Pragmopora
Pragmopora A. Massal.
Index Fungorum, Facesoffungi, MycoBank, GenBank.
Classification: Tympanidaceae, Leotiales, Leotiomycetidae, Leotiomycetes, Pezizomycotina, Ascomycota, Fungi
Saprobic on the host plant. Sexual morph: see Massalongo (1855). Asexual morph: Conidiomata black, stromatic, pycnidial, solitary, superficial, short stipitate, subglobose, unilocular, glabrous. Ostiole absent, dehiscence by irregular splits of the apical wall. Conidiomatal wall composed of thick-walled, dark brown to black cells of textura angularis. Conidiophores arising from inner layers of basal stroma, hyaline, irregular, branched, septate, smooth-walled. Conidiogenous cells hyaline, enteroblastic, polyphialidic, cylindrical to lageniform, integrated, indeterminate, smooth-walled. Conidia hyaline, fusiform to allantoid, unicellular, smooth-walled, guttulate (adapted from Sutton 1980).
Notes: Pragmopycnis isa monotypic genus and its single species, P. pithya was linked to the sexual morph Pragmopora pithya (Fr.) Groves (Sutton and Funk 1975). Johnston et al. (2014) synonymized Pragmopycnis under Pragmopora, and recommended to use Pragmopora for the holomorph, because it has priority and is most frequently cited.
The stipitate conidiomata in the asexual morph of Pragmopora led to a comparison with Tympanis (= Sirodothis). Pragmopora has solitary pycnidia, ramifying conidiophores, and polyphialidic conidiogenous cells with at least 15 conidia, whereas Tympanis has aggregated stromata, multiseptate, sparingly branched conidiophores and monophialidic conidiogenous cells (Sutton and Funk 1975, Sutton 1980). Moreover, the conidia of Pragmopora tend to be allantoid, which is similar to Cytospora, rather than cylindrical as in Tympanis. Molecular sequences of the asexual morph of Pragmopora are not available. It is necessary to obtain fresh material to confirm the connection between Pragmopora and Pragmopycnis.
= Pragmopycnis B. Sutton & A. Funk, Can. J. Bot. 53(6): 522 (1975).
Type species: Pragmopora amphibola A. Massal., Framm. Lichenogr.: 13 (1855).
Other accepted species: Species Fungorum – search Pragmopora.
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.