FungalpediaNote

Fungalpedia – Note 239, Mathurisporites (Fossil Fungi)   Mathurisporites Kalgutkar & Jansonius. Citation when using this entry: Saxena RK & Hyde KD. 2024 (in prep) – Fungalpedia, Fossil Fungi.  Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig. 1 Classification: Fossil Ascomycota, Incertae sedis, Fungi  The monotypic fossil genus Mathurisporites was instituted by Kalgutkar & Jansonius (2000) to accommodate Pluricellaesporites ellipticus, originally described by Mathur & Mathur (1969), from the Pliocene (5.3–2.6 mya) sediments of Naera and Baraia, Kutch District, Gujarat, India. Mathurisporites includes medium sized hilate spores, generally consisting of a darker central part with 2–4(–6) cells, and proximal and distal parts of a single to few hyaline cells. No distal pore is observed. Septa distinct, as thick as or thicker than the spore wall. This genus differs from Pluricellaesporites in the swollen dark central cells. The generic name honours [...]

Fungalpedia – Note 88 Megacoelomyces   Megacoelomyces Dianese, Guterres, M.D.M. Santos & G.F. Sepúlveda  Citation when using this entry: Pem et al., in prep – Genera of Dothideomycetes Mycosphere. Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1. Dos Santos et al. (2020) introduced Megacoelomyces to accommodate M. sanchezi based on morphology and analysis of combined ITS and LSU sequence data. Megacoelomyces sanchezi was collected on trichomes of living leaves of Myrcia fenzliana (Myrtaceae) in Brazil (Dos Santos et al. 2020). Megacoelomyces is known only from its asexual state, and is characterized by large, superficial, barely setose pycnidial conidiomata situated on a loose, trichome-associated subiculum. Megacoelomyces resembles Callistospora (Ascomycota incertae sedis), Orphanocoela (Pezizomycotina incertae sedis) and Urohendersoniella (Pezizomycotina incertae sedis) in having pycnidial, dematiaceous coelomyceteous morph with appendiculate, phragmosporous, or distoseptate conidia, but phylogenetic evidence obtained from analysis [...]

Fungalpedia - Note 22 Melanocucurbitaria   Citation: Bhunjun et al. 2023 – Fungalpedia, genera described in 2018, Mycosphere (in press)   Melanocucurbitaria Wanas., Gafforov & K.D. Hyde Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig. 1 Wanasinghe et al. (2018) introduced Melanocucurbitaria based on phylogenetic analyses of ITS, LSU, SSU and tef sequence data. Melanocucurbitaria clustered separately from other Melanommataceae genera, but, with poor statistical support. The genus has muriform ascospores similar to Gemmamyces, Muriformistrickeria, Pseudostrickeria and Praetumpfia. Melanocucurbitaria differs from the above-mentioned genera by the production of significantly larger ascomata and a thin peridium (Wanasinghe et al. 2018). Currently, the genus is monotypic with only the type species which was identified in Uzbekistan on branches of Acer pubescens. The asci and ascospores of the fungus resemble those of Cucurbitaria species. However, a clear distinction can be observed in the peridium, whereby [...]

Fungalpedia - Note 345, Melanogaster   Melanogaster Corda 1831  Citation if using this entry: Khyaju et al. 2025 (in prep.) − Fungalpedia, Basidiomycota 4. Index Fungorum, Faceoffungi, MycoBank, GenBank, Fig. 1             Classification: Paxillaceae, Boletales, Agaricomycetidae, Agaricomycetes, Agaricomycotina, Basidiomycota, Fungi. Melanogaster Corda (Paxillaceae, Boletales) was established in the early nineteenth century (Corda 1831) and Melanogaster tuberiformis is the type species of this genus. The characteristics of Melanogaster include gasteroid hypogeous to semi-hypogeous basidiomata, mycelial strands at the base or surface (sometimes), prosenchymatic peridium, gleba with gelatinous small chambers separated by sterile veins scattered throughout when mature, yellow to dark brown, globose, ellipsoid, pyriform, or fusiform basidiospores (Pegler et al. 1993, Trappe et al. 2009, Moreau et al. 2011, Alvarado et al. 2021, de la Fuente et al. 2021, Xu et al. 2022). Melanogaster was placed in the family Melanogastraceae and order [...]

Fungalpedia - Note 206, Melanoleuca   Melanoleuca Pat.    Citation if using this entry: Bera et al. 2024 (in prep) – Fungalpedia, Basidiomycota 1.  Index Fungorum, MycoBank, Facesoffungi, GenBank, Fig. 1 Classification: Incertae sedis, Agaricales, Agaricomycetes, Basidiomycota, Fungi Melanoleuca was initially classified under the family Tricholomataceae R. Heim ex Pouzar (Pouzar 1983). Melanoleuca is characterized by a lack of distinctive features, with numerous species that exhibit macroscopic similarities, differing only in subtle characteristics such as colour, and odor of the basidiomata (Vizzini et al. 2011). It is well-known that morphological characteristics can be significantly impacted by environmental factors (Bon 1991, Boekhout 1999, Vizzini et al. 2011). However, the first infrageneric classification of Melanoleuca relied mostly on macromorphological features (Metrod 1942, 1948, Singer 1986, Kuhner 1978, Antonin et al. 2022). Bon (1978) first used a combination of both macro- and micromorphological characters for the classification of [...]

Fungalpedia – Note 456, Melarthonis    Melarthonis Frisch & G. Thor  Citation when using this data: Tibpromma et al. 2024 (in prep.) – Fungalpedia, Lichenicolous fungi. Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig. 1  Classification: Chrysotrichaceae, Arthoniales, Arthoniomycetidae, Arthoniomycetes, Pezizomycotina, Ascomycota, Fungi. Frisch et al. (2014) was introduced Melarthonis with Melarthonis piceae as the type species as a monospecific genus of Chrysotrichaceae. Melarthonis can be diagnosed due to their pale greenish, minutely granular thallus, sparse; photobiont chlorococcoid, in small groups enclosed by mycobiont hyphae; ascomata black, adnate, strongly convex, rounded; proper exciple and epithecium dark brown; hymenium hyaline, conglutinated; filaments branched and anastomosed, the tips densely intertwined, with dark pigment; Arthonia-type asci, eight spored, lacking hemiamyloid tholus structures and narrow obovoid to spindle-shaped spores, hyaline, three septate, epispore thin; dark brown epithecium, formed of the densely [...]

Fungalpedia – Note 179, Meliolinites (Fossil Fungi)   Meliolinites Selkirk ex Janson. & L.V. Hills. Citation when using this data: Saxena RK & Hyde KD. 2024 (in prep) – Fungalpedia, Fossil Fungi.  Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig. 1.  Classification: Meliolaceae, Meliolales, Meliolomycetidae, Sordariomycetes, Pezizomycotina, Fossil Ascomycota, Fungi. Selkirk (1975) described Meliolinites from Early Miocene (23–16 mya) sediments in Kiandra, New South Wales, Australia. These were represented by fossil fungal colonies, exhibiting mycelium and spores with general characteristics of members of Meliolaceae. Mycelial setae are absent. Information regarding the perithecial structure and the nature of perithecial appendages is uncertain or lacking. Ten species listed in Index Fungorum (2023) under this genus. Type Species: Meliolinites spinksii (Dilcher) Selkirk ex Janson. & L.V. Hills. (= Meliola spinksii Dilcher)  Other accepted species: (Species Fungorum – search Meliolinites)     Figure 1 – Meliolinites spinksii. Scale bar = 10 μm. Redrawn from Selkirk (1975).   References Selkirk [...]

Fungalpedia – Note 397, Meristemomyces   Meristemomyces Isola & Onofri Citation when using this data: Tibpromma et al. (in prep.) – Fungalpedia, Rock-inhabiting fungi. Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig. 1           Classification: Incertae sedis, Capnodiales, Dothideomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi. Meristemomyces was introduced by Egidi et al. (2014), and Meristemomyces frigidus was designated as the type species. Phylogenetic analysis of LSU, rpb2, ITS, and BT2 sequences using Bayesian methods Meristemomyces was classified within Teratosphaeriaceae. Later, Crous et al. (2016) added a second species to the genus Meristemomyces arctostaphyli, which was isolated from the leaves of Arctostaphylos patula (Ericaceae) in Utah, USA, near the Long Valley. Meristemomyces frigidus is a rock-inhabiting fungus isolated from rocks in the Himalayas (Egidi et al. 2014). The placement of Meristemomyces within Teratosphaeriaceae was confirmed by Crous et al. (2016) based on further [...]

Fungalpedia - Note 411, Metapochonia   Metapochonia Kepler, S.A. Rehner & Humber  Citation when using this data: Tibpromma et al. 2024 (in prep.) – Fungalpedia, Ascomycota. Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig. 1 Classification: Clavicipitaceae, Hypocreales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi. Based on morphology and multigene phylogenetic analysis of TUB, RPB1, RPB2 and TEF1-α, Metapochonia was introduced by Kepler et al. (2014) as a monotypic genus within Clavicipitaceae to accommodate the type species Metapochonia suchlasporia and another four species (M. bulbillosa, M. goniodes, M. microbactrospora and M. rubescens). Zhang et al. (2017) described a new cave-inhabiting species (M. variabilis) from karst caves in Guizhou Province, China. One new species (M. lutea) and two new combinations were described by Labuda et al. (2018). Nine species have been accepted in Metapochonia, with only the known sexual morph distributed widely worldwide (Kepler et al. 2014). This genus is mainly characterized by whorled or singular slender, awl-shaped phialides [...]

Fungalpedia - Note 55 Meyerozyma   Meyerozyma Kurtzman & M. Suzuki Citation if using this entry: Fallahi et al. (2023) New genera in 2010-2011. Mycosphere (in prep) Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1 Kurtzman and Suzuki (2010) introduced Meyerozyma in Debaryomycetaceae (Saccharomycetales), based on the phylogenetic analysis of combined sequences of the D1/D2 divergent domains of the large subunit (LSU) and the nearly complete small subunit (SSU) rDNA genes. They accommodated Pichia guilliermondii and Pichia caribbica in this genus, as Meyerozyma guilliermondii and Meyerozyma caribbica (Kurtzman and Suzuki. 2010). Candida athensensis, Candida carpophila, Candida elateridarum, Candida neustonensis, and Candida smithsonii were also placed as five asexual members of the genus (Kurtzman and Suzuki. 2010; Suh and Blackwell. 2004). Later, Yurkov et al. (2017) described the new species Meyerozyma amylolytica in the Meyerozyma clade using phylogenetic analyses of ITS and LSU sequence data. They also proposed the transfer of five non-ascosporic members of the Meyerozyma clade to Meyerozyma as in [...]