Journal ArticleThe Science of the total environment · October 2025
Nitrogen bioavailability frequently constrains primary production in the Arctic with tundra communities vulnerable to ecological and metabolic disruption from climate variability. Diazotrophs associated with lichens and mosses are the primary source of new ...
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Journal ArticleBiogeosciences · April 29, 2025
From extracellular freezing to cloud glaciation, the crystallization of water is ubiquitous and shapes life as we know it. Efficient biological ice nucleators (INs) are crucial for organism survival in cold environments and, when aerosolized, serve as a si ...
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Journal ArticleThe ISME journal · January 2025
Nostoc cyanobacteria are among the few organisms capable of fixing both carbon and nitrogen. These metabolic features are essential for the cyanolichen symbiosis, where Nostoc supplies both carbon (as glucose) and nitrogen (as ammonium) to a cyanolichen-fo ...
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Journal ArticleAmerican journal of botany · December 2024
PremiseSouthern Africa is a biodiversity hotspot rich in endemic plants and lichen-forming fungi. However, species-level data about lichen photobionts in this region are minimal. We focused on Trebouxia (Chlorophyta), the most common lichen photob ...
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Journal ArticleCurrent biology : CB · March 2024
Understanding how symbiotic associations differ across environmental gradients is key to predicting the fate of symbioses as environments change, and it is vital for detecting global reservoirs of symbiont biodiversity in a changing world.1 ...
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Journal ArticlePersoonia Molecular Phylogeny and Evolution of Fungi · December 1, 2023
Applying molecular methods to fungi establishing lichenized associations with green algae or cyanobacteria has repeatedly revealed the existence of numerous phylogenetic taxa overlooked by classical taxonomic approaches. Here, we report taxonomical conclus ...
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Journal ArticleLichenologist · September 22, 2023
Peltigera globulata Miadl. & Magain, a new species in the P. ponojensis/monticola species complex of section Peltigera, is formally described. This clade was previously given the interim designation Peltigera sp. 17. It is found in sun-exposed and xeric ha ...
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Journal ArticleSystematic biology · June 2023
Prokaryotic genomes are often considered to be mosaics of genes that do not necessarily share the same evolutionary history due to widespread horizontal gene transfers (HGTs). Consequently, representing evolutionary relationships of prokaryotes as bifurcat ...
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Journal ArticlePlant and Fungal Systematics · July 1, 2022
Peltigera islandica and P. lyngei are rarely reported lichens. Previously, P. islandica was known from British Columbia, Estonia, and Iceland, and P. lyngei from Amchitka Island (Alaska), Gough Island (South Atlantic), Iceland, Siberia and Svalbard. Both s ...
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Journal ArticleThe New phytologist · February 2022
Although secondary metabolites are typically associated with competitive or pathogenic interactions, the high bioactivity of endophytic fungi in the Xylariales, coupled with their abundance and broad host ranges spanning all lineages of land plants and lic ...
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Journal ArticleEcology and evolution · February 2022
Biotic specialization holds information about the assembly, evolution, and stability of biological communities. Partner availabilities can play an important role in enabling species interactions, where uneven partner availabilities can bias estimates of bi ...
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Journal ArticleFungal systematics and evolution · June 2021
An order, family and genus are validated, seven new genera, 35 new species, two new combinations, two epitypes, two lectotypes, and 17 interesting new host and / or geographical records are introduced in this study. Validated order, family and genus: Su ...
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Journal ArticleCommunications biology · March 2021
Featured Publication
Understanding how species-rich communities persist is a foundational question in ecology. In tropical forests, tree diversity is structured by edaphic factors, climate, and biotic interactions, with seasonality playing an essential role at landscape scales ...
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Journal ArticleLichenologist · March 1, 2021
Featured Publication
The new genus Sinuicella, an early successional lichen, was found on bare soil in Oregon, USA. The thallus is minute fruticose, grey to nearly black, branching isotomic dichotomous, branches round, 20-90 μm wide in water mount. The cortex is composed of in ...
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Journal ArticleFrontiers in microbiology · January 2021
Shifts in climate along elevation gradients structure mycobiont-photobiont associations in lichens. We obtained mycobiont (lecanoroid Lecanoraceae) and photobiont (Trebouxia alga) DNA sequences from 89 lichen thalli collected in Bolivia from a ca. 4 ...
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Journal ArticlePlant and Fungal Systematics · December 1, 2020
We inventoried lichens in Kenai Fjords National Park in Alaska, USA We assembled the known information on occurrence and ecology of lichens in this park by combining field, herbarium, and literature studies. Our results provide baseline data on lichen occu ...
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Journal ArticlePlant and Fungal Systematics · June 1, 2020
Peltigera hydrophila, a new species from Chile tentatively distinguished based on phylogenetic evidence but not yet named, is formally described here. Morphological differences (e.g., non-tomentose thallus) and habitat preferences (semi-aquatic) corroborat ...
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Journal ArticlePlant and Fungal Systematics · June 1, 2020
Peltigera serusiauxii is proposed here as a new species from Papua New Guinea and Sabah, northern Borneo (Malaysia). The species belongs to the polydactyloid clade of section Polydactylon. Because of its large thalli with a glabrous upper surface, this spe ...
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Journal ArticleLichenologist · January 1, 2020
Since the advent of molecular taxonomy, numerous lichen-forming fungi with homoiomerous thalli initially classified in the family Collemataceae Zenker have been transferred to other families, highlighting the extent of morphological convergence within Leca ...
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Journal ArticlePlant and Fungal Systematics · December 1, 2019
Neotropical mountain forests are characterized by having hyperdiverse and unusual fungi inhabiting lichens. The great majority of these lichenicolous fungi (i.e., detectable by light microscopy) remain undescribed and their phylogenetic relationships are m ...
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Journal ArticleNature ecology & evolution · October 2019
Boreal forests represent the world's largest terrestrial biome and provide ecosystem services of global importance. Highly imperilled by climate change, these forests host Earth's greatest phylogenetic diversity of endophytes, a hyperdiverse group of symbi ...
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Journal ArticleJournal of Ecology · July 1, 2019
Ecological interactions range from purely specialized to extremely generalized in nature. Recent research has showed very high levels of specialization in the cyanolichens involving Peltigera (mycobionts) and their Nostoc photosynthetic partners (cyanobion ...
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Journal ArticleMicrobiology resource announcements · July 2019
The Tree-Based Alignment Selector (T-BAS) toolkit combines phylogenetic-based placement of DNA sequences with alignment and specimen metadata visualization tools in an integrative pipeline for analyzing microbial biodiversity. The release of T-BAS version ...
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Journal ArticleNature communications · December 2018
Interactions between fungi and plants, including parasitism, mutualism, and saprotrophy, have been invoked as key to their respective macroevolutionary success. Here we evaluate the origins of plant-fungal symbioses and saprotrophy using a time-calibrated ...
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Journal ArticlePlant and Fungal Systematics · December 1, 2018
Closely related lichen-forming fungal species circumscribed using phenotypic traits (morphospecies) do not always align well with phylogenetic inferences based on molecular data. Using multilocus data obtained from a worldwide sampling, we inferred phyloge ...
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Journal ArticleFrontiers in Microbiology · November 16, 2018
Species circumscription is key to the characterization of patterns of specificity in symbiotic systems at a macroevolutionary scale. Here, a worldwide phylogenetic framework was used to assess the biodiversity and symbiotic patterns of association among pa ...
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Journal ArticleTaxon · October 1, 2018
This comprehensive phylogenetic revision of sections Peltigera and Retifoveatae of the cyanolichen genus Peltigera is based on DNA sequences from more than 500 specimens from five continents. We amplified five loci (nrITS, β-tubulin and three intergenic sp ...
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Journal ArticleOecologia · July 2018
Identifying the drivers and evolutionary consequences of species interactions is a major goal of community ecology. Network-based analyses can provide mathematical tools to detect non-random patterns of interactions, and potentially help predicting the con ...
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Journal ArticleAmerican journal of botany · July 2018
Premise of the studyFactors shaping spatiotemporal patterns of associations in mutualistic systems are poorly understood. We used the lichen-forming fungi Peltigera and their cyanobacterial partners Nostoc to investigate the spatial structure of t ...
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Journal ArticleMycosphere · January 1, 2018
We inventoried lichens in Lake Clark (LACL) and Katmai (KATM) National Parks and Preserves. We assembled the known information on lichens in these parks by combining field, herbarium, and literature studies. Our results provide baseline data on lichen occu ...
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Journal ArticleMolecular phylogenetics and evolution · December 2017
Synteny can be maintained for certain genomic regions across broad phylogenetic groups. In these homologous genomic regions, sites that are under relaxed purifying selection, such as intergenic regions, could be used broadly as markers for population genet ...
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Journal ArticlePhytotaxa · May 5, 2017
Within the lichen family Verrucariaceae, the genera Endocarpon, Willeya and Staurothele are characterised by muriform ascospores and the presence of algal cells in the hymenium. Endocarpon thalli are squamulose to subfruticose, whereas Willeya and Stauroth ...
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Journal ArticleBioinformatics (Oxford, England) · April 2017
MotivationHigh-quality phylogenetic placement of sequence data has the potential to greatly accelerate studies of the diversity, systematics, ecology and functional biology of diverse groups. We developed the Tree-Based Alignment Selector (T-BAS) ...
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Journal ArticleThe New phytologist · January 2017
Cryptogamic species and their associated cyanobacteria have attracted the attention of biogeochemists because of their critical roles in the nitrogen cycle through symbiotic and asymbiotic biological fixation of nitrogen (BNF). BNF is mediated by the nitro ...
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ConferenceSystematic biology · January 2017
Patterns of specificity among symbiotic partners are key to a comprehensive understanding of the evolution of symbiotic systems. Specificity of mutualistic partners, within a widespread monophyletic group for which all species are sampled has rarely been e ...
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Journal ArticleLichenologist · September 1, 2016
The identity and phylogenetic placement of photobionts associated with two lichen-forming fungi, Umbilicaria spodochroa and Lasallia pustulata were examined. These lichens commonly grow together in high abundance on coastal cliffs in Norway, Sweden and Fin ...
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Journal ArticleStudies in mycology · September 2016
A culture-based survey of staining fungi on oil-treated timber after outdoor exposure in Australia and the Netherlands uncovered new taxa in Pezizomycotina. Their taxonomic novelty was confirmed by phylogenetic analyses of multi-locus sequences (ITS ...
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Journal ArticleLichenologist · September 1, 2016
A new cyanolichen, Peltigera islandica sp. nov. in the section Peltigera ('P. canina group') is described from Iceland. This species is similar in general appearance to P. rufescens and P. membranacea, but may be recognized by its downturned lobe tips and ...
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Journal ArticleMolecular phylogenetics and evolution · May 2016
The Xylariaceae (Sordariomycetes) comprise one of the largest and most diverse families of Ascomycota, with at least 85 accepted genera and ca. 1343 accepted species. In addition to their frequent occurrence as saprotrophs, members of the family often are ...
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Journal ArticleOecologia · January 2016
Understanding the factors that shape community assembly remains one of the most enduring and important questions in modern ecology. Network theory can reveal rules of community assembly within and across study systems and suggest novel hypotheses regarding ...
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Journal ArticleThe New phytologist · December 2015
We studied the evolutionary history of the Parmeliaceae (Lecanoromycetes, Ascomycota), one of the largest families of lichen-forming fungi with complex and variable morphologies, also including several lichenicolous fungi. We assembled a six-locus data set ...
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Journal ArticleThe Science of the total environment · November 2015
Northeastern Canada is mostly free of anthropogenic activities. The extent to which this territory has been impacted by anthropogenic atmospheric depositions remains to be studied. The main goal of our study was to establish background levels for metals in ...
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Journal ArticleMolecular phylogenetics and evolution · April 2015
Symbiotic fungi living in plants as endophytes, and in lichens as endolichenic fungi, cause no apparent symptoms to their hosts. They are ubiquitous, ecologically important, hyperdiverse, and represent a rich source of secondary compounds for new pharmaceu ...
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Journal Article · January 1, 2015
Lecanoromycetes is the class of Ascomycota with the largest number of lichen-forming fungi. Members of this class are important components of most terrestrial ecosystems and occur in various habitats and on different substrates, from tropical to polar regi ...
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Journal ArticleMolecular phylogenetics and evolution · October 2014
The Lecanoromycetes is the largest class of lichenized Fungi, and one of the most species-rich classes in the kingdom. Here we provide a multigene phylogenetic synthesis (using three ribosomal RNA-coding and two protein-coding genes) of the Lecanoromycetes ...
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Journal ArticleMolecular ecology resources · September 2014
Next-generation sequencing technologies have provided unprecedented insights into fungal diversity and ecology. However, intrinsic biases and insufficient quality control in next-generation methods can lead to difficult-to-detect errors in estimating funga ...
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Journal ArticleAmerican journal of botany · July 2014
• Premise of this study: Aquatic cyanolichens from the genus Peltigera section Hydrothyriae are subject to anthropogenic threats and, therefore, are considered endangered. In this study we addressed the phylogenetic placement of section Hydrothyriae within ...
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Journal ArticleThe New phytologist · May 2014
Molybdenum (Mo) nitrogenase has long been considered the predominant isoenzyme responsible for dinitrogen fixation worldwide. Recent findings have challenged the paradigm of Mo hegemony, and highlighted the role of alternative nitrogenases, such as the van ...
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Journal ArticleThe New phytologist · April 2013
Coevolutionary theory predicts that the distribution of obligately symbiotic organisms will be determined by the dispersal ability and ecological range of both partners. We examined this prediction for lichen-forming fungi that form obligate symbioses with ...
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Journal ArticleMolecular phylogenetics and evolution · October 2012
Through a culture-based survey of living sapwood and leaves of rubber trees (Hevea spp.) in remote forests of Peru, we discovered a new major lineage of Ascomycota, equivalent to a class rank. Multilocus phylogenetic analyses reveal that this new lineage o ...
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Journal ArticleBryologist · June 1, 2012
To evaluate the current delimitation of broadly distributed morphospecies from the Lecanora dispersa group, the nuclear ribosomal internal transcribed spacer region (ITS1, 5.8S and ITS2) was analyzed phylogenetically and compared to phenotypic data variati ...
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Journal ArticleAmerican journal of botany · May 2012
Premise of the studyEndophytic and endolichenic fungi occur in healthy tissues of plants and lichens, respectively, playing potentially important roles in the ecology and evolution of their hosts. However, previous sampling has not comprehensively ...
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Journal ArticleBryologist · September 1, 2011
Hypogymnia imshaugii is one of the most common, conspicuous and morphologically variable epiphytic lichens of the Pacific coastal states and provinces. The species varies greatly in morphology and chemistry, suggesting multiple closely related species or o ...
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Journal ArticleMycologia · September 2011
The genus Lecidea Ach. sensu lato (sensu Zahlbruckner) includes almost 1200 species, out of which only 100 species represent Lecidea sensu stricto (sensu Hertel). The systematic position of the remaining species is mostly unsettled but anticipated to repre ...
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Journal ArticleBryologist · June 1, 2011
We inferred phylogenetic relationships using Bayesian and maximum likelihood approaches for two genera of lichenized fungi, Hypogymnia and Cavernularia (Parmeliaceae). Based on the combined ITS and GPD1 dataset from 23 species (49 specimens) of Hypogymnia ...
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Journal ArticleMycologia · January 2011
We studied an Andean endemic group of species of the lichen-forming fungal genus Umbilicaria from the subalpine and low-alpine zone, with their biogeographic center in Bolivia and Peru. A number of species and varieties have been described from this elemen ...
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Journal ArticleTaxon · December 1, 2010
Parmelioid lichens are a diverse and ubiquitous group of foliose lichens. Generic delimitation in parmelioid lichens has been in a state of flux since the late 1960s with the segregation of the large, heterogeneous genus Parmelia into numerous smaller gene ...
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Journal ArticleEvolution; international journal of organic evolution · August 2009
The lichen-forming fungal genus Peltigera includes a number of species that are extremely widespread, both geographically and ecologically. However, morphological variability has lead to doubts about the distinctness of some species, and it has been sugges ...
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Journal ArticleSystematic biology · June 2009
Fungi associated with photosynthetic organisms are major determinants of terrestrial biomass, nutrient cycling, and ecosystem productivity from the poles to the equator. Whereas most fungi are known because of their fruit bodies (e.g., saprotrophs), sympto ...
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Journal ArticleSystematic biology · April 2009
We present a 6-gene, 420-species maximum-likelihood phylogeny of Ascomycota, the largest phylum of Fungi. This analysis is the most taxonomically complete to date with species sampled from all 15 currently circumscribed classes. A number of superclass-leve ...
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Journal ArticleMycological research · January 2009
A multi-locus phylogenetic study of the order Arthoniales is presented here using the nuclear ribosomal large subunit (nuLSU), the second largest subunit of RNA polymerase II (RPB2) and the mitochondrial ribosomal small subunit (mtSSU). These genes were se ...
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Journal ArticleBryologist · March 1, 2008
Dermatocarpon, a saxicolous lichen, is common throughout the Ozarks Highlands of North America where exposed rock is abundant. Dermatocarpon is an understudied genus. Species delimitation is difficult because of a paucity of morphological characters and a ...
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Journal ArticleMolecular phylogenetics and evolution · July 2007
The resolving power and statistical support provided by two protein-coding (RPB1 and RPB2) and three ribosomal RNA-coding (nucSSU, nucLSU, and mitSSU) genes individually and in various combinations were investigated based on maximum likelihood bootstrap an ...
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Journal ArticleMolecular phylogenetics and evolution · February 2007
Although associated with all plants, fungal endophytes (microfungi that live within healthy plant tissues) represent an unknown proportion of fungal diversity. While there is a growing appreciation of their ecological importance and human uses, little is k ...
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Journal ArticleMycologia · November 2006
The Lecanoromycetes includes most of the lichen-forming fungal species (> 13500) and is therefore one of the most diverse class of all Fungi in terms of phenotypic complexity. We report phylogenetic relationships within the Lecanoromycetes resulting from B ...
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Journal ArticleMycologia · November 2006
The class Eurotiomycetes (Ascomycota, Pezizomycotina) is a monophyletic group comprising two major clades of very different ascomycetous fungi: (i) the subclass Eurotiomycetidae, a clade that contains most of the fungi previously recognized as Plectomycete ...
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Journal ArticleMycologia · November 2006
Pezizomycotina is the largest subphylum of Ascomycota and includes the vast majority of filamentous, ascoma-producing species. Here we report the results from weighted parsimony, maximum likelihood and Bayesian phylogenetic analyses of five nuclear loci (S ...
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Journal ArticleEuropean Journal of Phycology · November 1, 2005
Heterocystous cyanobacteria form symbiotic associations with a wide range of plant and fungal hosts. We used a molecular phylogenetic approach to investigate the degree of host specialization of cyanobacteria associated with four closely related species of ...
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Journal ArticleAmerican journal of botany · October 2004
Based on an overview of progress in molecular systematics of the true fungi (Fungi/Eumycota) since 1990, little overlap was found among single-locus data matrices, which explains why no large-scale multilocus phylogenetic analysis had been undertaken to re ...
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Journal ArticleAmerican journal of botany · March 2004
To provide a comprehensive molecular phylogeny for peltigeralean fungi and to establish a classification based on monophyly, phylogenetic analyses were carried out on sequences from the nuclear ribosomal large (LSU) and small (SSU) subunits obtained from 1 ...
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Journal ArticleBotanical Journal of the Linnean Society · February 1, 2004
The Opegrapha species with 3-septate ascospores growing on Pertusaria and Ochrolechia are revised. Two species are recognized: Opegrapha anomea (of which O. pertusariae, O. quaternella, O. wetmorei and possibly Leciographa weissii are considered to be syno ...
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Journal ArticleMycologia · November 2003
The Peltigera canina species complex consists of foliose lichenized bitunicate ascohymenial discomycetes forming section Peltigera within the genus Peltigera (Lecanoromycetes, lichen-forming Ascomycetes). To test the circumscription of highly polymorphic s ...
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Journal ArticleBryologist · January 1, 2003
The Peltigera didactyla complex comprises species of section Peltigera with laminal and submarginal soredia. Three species (P. didactyla, P. lambinonii, and P. ulcerata) and one atypical variety (P. didactyla var. extenuata) are currently recognized within ...
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Journal ArticleBryologist · January 1, 2003
A new lichenicolous species, Plectocarpon peltigerae, growing on Peltigera leucophlebia thalli, is described from Canada and Russia. ...
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Journal ArticleBryologist · January 1, 2003
In this paper we segregate specimens from the genus Sticta in the Great Smoky Mountains National Park into phenotypic groups corresponding to putative species using traditional taxonomic methods, paying particular attention to specimens from the S. weigeli ...
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Journal ArticleBryologist · January 1, 2002
Pseudocyphellaria perpetua McCune & Miadlikowska is described as a new species of lichenized fungus from Oregon, U.S.A. Morphologically similar to some forms of P. crocata, P. perpetua is separated from that species by a yellow medulla and predominantly ma ...
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Journal ArticleInternational Journal of Plant Sciences · January 1, 2000
Peltigera (Peltigerineae, lichenized Ascomycota) is one of the most widespread lichen genera incorporating bi- and trimembered associations involving fungi, green algae (cf. Coccomyxa), and cyanobacteria (cf. Nostoc). A wide range of morphological and chem ...
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Journal ArticleLichenologist · January 1, 1999
The new species Peltigera phyllidiosa Goffinet and Miadlikowska from the Southern Appalachians, eastern U.S.A., is closely related to P. collina and P. neckeri. Like these species it has a glabrous upper cortex and black fingernail- or saddle-shaped apothe ...
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Journal ArticleMycological Research · January 1, 1997
A study of the lichenicolous fungi occurring on species of the lichenized genus Peltigera has resulted in six new species: Libertiella curvispora, L. didymospora, L. fennica Alstrup, Polycoccum superficiale, Roselliniella peltigericola, and Zwackhiomyces K ...
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Journal ArticleLichenologist · January 1, 1997
The new genus Vagnia is introduced for the single species V. cirriformia discovered on thalli of Peltigera in Poland; it appears to be a pathogen as the cortex is destroyed in a rounded patch within which the conidiomata occur. The fungus is characterized ...
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