Lichenostigma | |
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Lichenostigma cosmopolites | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Fungi |
Division: | Ascomycota |
Class: | Arthoniomycetes |
Order: | Lichenostigmatales |
Family: | Phaeococcomycetaceae |
Genus: | Lichenostigma Hafellner (1983) |
Type species | |
Lichenostigma maureri Hafellner (1983) | |
Synonyms [1] | |
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Lichenostigma is a genus of fungi in the family Phaeococcomycetaceae. [2] . It includes several species which are lichenicolous (i.e. parasitic on lichens). [3] The genus was circumscribed in 1983 by the Austrian mycologist Josef Hafellner, with Lichenostigma maureri assigned as the type species. [4]
The fossil history of Lichenostigma provides insights into its ancient origins and long-standing ecological relationships. Discoveries from European Paleogene amber have identified two fossil specimens of Lichenostigma associated with the crustose lichen genus Ochrolechia . These fossils date back approximately 34 million years, to the uppermost Eocene. The presence of Lichenostigma in these amber inclusions confirms that both the genus and its specialised parasitic association with Ochrolechia were already well-established during this period. The fossilised Lichenostigma specimens have conidiomata and ascomata (specialised structures to produce asexual and sexual spores, respectively) that are morphologically similar to those of modern species, demonstrating the evolutionary continuity of these lichenicolous fungi. This discovery not only pushes back the minimum age of the genus Lichenostigma but also provides calibration points for phylogenetic studies. [5]
The identification of Lichenostigma in amber fossils marks a significant advancement in paleomycology, particularly regarding the fossil record of lichenicolous fungi. Prior to these findings, evidence of ancient lichen-associated microfungi was limited to more general and likely saprotrophic associations. The Lichenostigma fossils, however, represent the first concrete evidence of mycoparasitic relationships in the fossil record, highlighting the ecological importance of these interactions. [5]
As of July 2024 [update] , Species Fungorum (in the Catalogue of Life) accepts 30 species of Lichenostigma. [6]
Lichenochora is a genus of fungi in the family Phyllachoraceae. It has 44 species. All species in the genus are lichenicolous, meaning they grow parasitically on lichens. The genus was circumscribed by Josef Hafellner in 1989, with Lichenochora thallina assigned as the type species.
Opegrapha is a genus of lichenized fungi in the family Opegraphaceae. Species include:
Stigmidium is a genus of lichenicolous (lichen-eating) fungi in the family Mycosphaerellaceae. The genus was circumscribed by Italian botanist Vittore Benedetto Antonio Trevisan de Saint-Léon in 1860, with Stigmidium schaereri assigned as the type species.
Sphaerellothecium is a genus of fungi in the family Phyllachoraceae. All of the species in the genus are lichenicolous, meaning they grow parasitically on lichens.
Bellemerella is a genus of fungi in the family Verrucariaceae. All four species are lichenicolous, meaning they grow parasitically on other lichens.
Endococcus is a genus of lichenicolous (lichen-dwelling) in the family Lichenotheliaceae. It has 44 species. The genus was circumscribed by the Finnish botanist William Nylander in 1855. Although at least one source places the genus in the Verrucariaceae, a 2016 study of the type species, Endococcus rugulosus, determined that it should instead be placed in the family Lichenotheliaceae of the order Dothideales; this classification echoes a placement proposed in 1979 by David Hawksworth.
Sarcopyrenia is a genus of lichenicolous (lichen-dwelling) fungi. It has 11 species. It is the only genus in Sarcopyreniaceae, a family in the order Verrucariales. Sarcopyrenia was circumscribed by Finnish lichenologist William Nylander in 1858, with Sarcopyrenia gibba assigned as the type species. Sarcopyreniaceae is one of the few families composed entirely of lichenicolous fungi.
Abrothallus is a genus of lichenicolous fungi. It is the only genus in the monotypic family Abrothallaceae, which itself is the sole taxon in the order Abrothallales.
Zwackhiomyces is a genus of lichenicolous fungi in the family Xanthopyreniaceae. The genus was circumscribed by Martin Grube and Josef Hafellner in 1990, with Zwackhiomyces coepulonus assigned as the type species.
Llimoniella is a genus of fungi in the family Cordieritidaceae. The genus was circumscribed by lichenologists Josef Hafellner and Père Navarro-Rosinés in 1993.
Skyttea is a genus of lichenicolous (lichen-dwelling) fungi in the family Cordieritidaceae. The genus was circumscribed in 1981 by lichenologists Martha Allen Sherwood, David L. Hawksworth, and Brian J. Coppins, with Skyttea nitschkei assigned as the type species.
Taeniolella is a genus of asexual fungi hyphomycetes in the family Mytilinidiaceae. Some of the species are lichenicolous (lichen-dwelling), others are saprophytic, while others are endophytic. The genus was circumscribed in 1958 by Canadian mycologist Stanley John Hughes, with Taeniolella exilis as the type species. Major revisions of the lichenicolous species in the genus were published in 2016 and 2018.
Josef Hafellner is an Austrian mycologist and lichenologist. He was awarded the Acharius Medal in 2016 for his lifetime contributions to lichenology. Before his retirement, he was a professor at the Karl-Franzens-Universität in Graz. Hafellner started developing an interest in lichens while he was a student at this institution, studying under Josef Poelt. He earned a master's degree in 1975 and a PhD in 1978, defending a doctoral thesis about the genus Karschia. In 2003, Hafellner received his habilitation. By this time, he had studied with French lichenologist André Bellemère (1927–2014) at Saint-Cloud, where he learned techniques of transmission electron microscopy and how their application in studying asci could be used in lichen systematics. His 1984 work Studien in Richtung einer natürlicheren Gliederung der Sammelfamilien Lecanoraceae und Lecideaceae has been described as "probably the single most influential publication in lichen systematics in the latter half of the 20th century".
Dacampia is a genus of fungi in the family Dacampiaceae. It contains 15 species. The genus was circumscribed in 1853 by Italian lichenologist Abramo Bartolommeo Massalongo, with Dacampia hookeri assigned as the type species. The genus name honours Italian naturalist Benedetto de Dacampo (1787–1851).
Cordieritidaceae is a family of fungi in the order Cyttariales. Species in this family are saprobes or lichenicolous.
Sclerococcum is a genus of lichenicolous fungi in the family Dactylosporaceae.
Polycoccum is a genus of lichenicolous fungi in the family Polycoccaceae. It has about 60 species.
Halospora is a genus of lichenicolous (lichen-dwelling) fungi in the family Verrucariaceae. Species in the genus parasitise calcicolous crustose lichens, i.e., those that prefer lime-rich substrates.
Rhagadostoma is a genus of fungi in the family Nitschkiaceae. All species in the genus are lichenicolous, meaning they live parasitically on lichens.