James Lendemer

James Lendemer
New York Botanical Garden · Institute of Systemtic Botany

PhD

About

375
Publications
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Publications

Publications (375)
Article
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Lichens are diverse symbiotic organisms that contribute essential functions to ecosystems worldwide. Generally, lichens are under-represented in conservation assessments and implementation when compared to other groups of organisms (e.g., plants and vertebrates). However, some progress has been made towards better conservation of lichens in recent...
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For more than two centuries, biodiversity collections have served as the foundation for scientific investigation of and education about life on Earth (Melber and Abraham 2002, Cook et al. 2014, Funk 2018). The collections that have been assembled in the past and continue to grow today are a cornerstone of our national heritage that have been treate...
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Large-scale efforts to aggregate and promote the re-use of biodiversity data are leading to novel insights into biogeography and macroecology. However, secondary analyses must account for the tradeoffs and limitations of the original studies. Studies of speciose and taxonomically complex groups often utilize morphospecies or functional subsets as p...
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Analyses of data associated with 1376 taxonomic innovations (703 new taxa, 673 new combinations and replacement names) published from 2018–2020 are presented. Taxonomic contributions represented 14.2% of the published literature for the period. Most registration numbers for new names were obtained from MycoBank, suggesting the community has coalesc...
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Several decades of research across disciplines have overturned historical perspectives of symbioses dominated by binary characterizations of highly specific species–species interactions. This paradigm shift has unlocked the previously underappreciated and overlooked dynamism of fungal mutualisms such as mycorrhizae. Lichens are another example of i...
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Aim Understanding ecological distributions of global biodiversity is stymied by incomplete knowledge of drivers of species rarity. These include trade‐offs among life‐history traits that impact dispersability, competition, reproductive output and speciation and extinction. In this study, we aim to understand potential drivers of rarity in North Ame...
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Ericoid mycorrhizal (ErM) shrubs commonly occur in forest understories and could therefore alter arbuscular (AM) and/or ectomycorrhizal (EcM) tree effects on soil carbon and nitrogen dynamics. Specifically, ErM fungi have extensive organic matter decay capabilities, and ErM plant and fungal tissues have high concentrations of secondary compounds th...
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Catillaria fungoides is newly reported for North America based on collections from the temperate eastern United States. A detailed description based on North American material is provided, the distribution is mapped, and images are provided. The species is likely widespread but overlooked due to its inconspicuous appearance.
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Alectoria fallacina, described by the prolific 20th century lichenologist Josef Motyka, is a threatened species narrowly endemic to the Appalachian Mountains of eastern North America. The production of a unique unidentified fatty acid as the main secondary metabolite chemically separates A. fallacina from its congeners, especially the morphological...
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Halecania robertcurtisii is described as new to science from dry sandstone cliffs and overhangs in Ohio, USA, in eastern North America. It has a smooth and continuous to rimose-areolate thallus, pseudolecanorine apothecia with reddish to rust colored disks, and lacks lichen substances. The species is similar to Halecania subsquamosa but lacks the d...
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As part of a revision of the Leptogium saturninum group in North America, we described L. cookii D. F. Stone & Lendemer as a new species from the western United States and Canada (Stone et al. 2016). The separation of L. cookii from other members of the group was based on a combination of morphological differences (isidium morphology, medulla anato...
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Sarcogyne similis is found to produce psoromic acid, a substance previously known from only one other species in the family Acarosporaceae. Study of more than one hundred specimens from throughout the range of S. similis confirms the species is widely distributed from Nova Scotia, Canada, south throughout much of the eastern United States, and west...
Book
A practical field guide to the common lichens found in the northeastern megalopolis, including New York City, Toronto, Boston/New Haven, Philadelphia, Baltimore/Washington, D.C., and as far west as Chicago. Lichens are dynamic, symbiotic organisms formed by close cooperation between fungi and algae. There are over 20,000 identified species perfor...
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Capronia harrisiana, a lichenicolous fungus on the tripartite foliose lichen Crocodia aurata, is described as new to science. Although the host species is widespread in many areas of the world, no species of Capronia has previously been reported from Crocodia aurata, and Capronia harrisiana appears to be endemic to the southern Appalachian Mountain...
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Chrysothrix susquehannensis was originally described from vertical rocks faces at a single locality in southeastern Pennsylvania, U.S.A. Here we document new occurrences discovered as result of fieldwork and the revision of herbarium specimens. We show that C. susquehannensis, although rare, is widespread in the Appalachian Mountains of eastern Nor...
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This study compares the lichen, moss, and vascular plant species found on the abandoned High Line rail line in 2002 with those found on a three-block remnant of the High Line between 30th and 33rd Streets and 12th Avenue in 2019. One hundred fifty-five species were identified in 125 genera belonging to 47 families in the 2002 study. The 2019 study...
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Bacidia depriestiana is described as new to science based on material from the southern Appalachian Mountains of eastern North America. The species has a granular to minutely areolate thallus, with minute, erumpent soralia, produces atranorin and zeorin, and is not known to produce apothecia. The combination of chemistry and thallus type appears to...
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1. Plant‐fungal associations strongly influence forest carbon and nitrogen cycling. The prevailing framework for understanding these relationships is through the relative abundance of arbuscular (AM) versus ectomycorrhizal (EcM) trees. Ericoid mycorrhizal (ErM) shrubs are also common in forests and interactions between co‐occurring ErM shrubs and A...
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Sulcaria spiralifera is a fruticose arboreal lichen that is endemic to coastal dune forests in western North America. It occurs at scattered localities from central California to Washington. It is rare throughout its range, except on the Samoa Peninsula in California's Humboldt County and on the Oregon Dunes in Coos County where it is locally abund...
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New provincial and territorial records for Canadian lichens and allied fungi are presented, many of which represent major range extensions. Crespoa crozalsiana is reported for the first time from Canada. New reports are made for the first time from five provinces and one territory: Newfoundland and Labrador (Geltingia associata on Ochrolechia), Nov...
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The rediscovery of Rockefellera crossophylla in Alabama, U.S.A. is documented based on six sites discovered between 2015 and 2018. This unusual species was first documented from Alabama by Thomas Minott Peters in the mid-1800’s, but not subsequently seen until rediscovered by the first author in Lawrence County, in 2015, on a sandstone boulder in t...
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Calogaya saxicola (≡ Caloplaca saxicola) is reported for the first time from the Queen Elizabeth Islands in the Canadian High Arctic. The report is based on an unusual form with inconspicuous or absent lobes and clustered apothecia forming hemispherical mounds. It was identified using a molecular phylogenetic analysis of ITS nrDNA sequence data. Ou...
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Background Prescribed fire is increasingly used to accomplish management goals in fire-adapted systems, yet our understanding of effects on non-target organisms remains underdeveloped. Terricolous lichens in the genus Cladonia P. Browne, particularly cushion-forming reindeer lichens belonging to Cladonia subgenus Cladina Nyl., fit into this categor...
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A taxonomic revision of Hypotrachyna subgenus Parmelinopsis in eastern North America is presented based on molecular phylogenetic analyses of ITS and mtSSU data, extensive field observation and analyses of chemical and morphological data. Each species is described, illustrated with photographs, and the distribution in the region is mapped. An ident...
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Bacidia gigantensis, a green to greenish-brown, sorediate, crustose to microsquamulose lichen is described as new to science. It is corticolous on mature Thuja occidentalis trees throughout Sleeping Giant Provincial Park on the Sibley Peninsula along the north shore of Lake Superior, Ontario. The species is unusual within Bacidia due to the product...
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Caloplaca edwardiana is described as new to science from collections made on calcareous rock outcrops in the southern Appalachian Mountains of eastern North America (Alabama, Georgia and Tennessee). The species appears to be rare and locally endemic, currently only known from five locations. As an endolithic species without anthraquinones, C. edwar...
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In the spring of 2017, the 26th Tuckerman Workshop was held in central Alabama, based in Columbiana. Participants collected lichens from six unique sites across the hills of central Alabama. An account of the lichens collected from five of those sites are presented here. A total of 274 species from 118 genera are reported from the region based on f...
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The global decline in biodiversity has invigorated the field of conservation biology, leading to investigation of species at risk of extinction in hopes of generating effective conservation strategies. Some highly diverse taxa, such as lichens, have received considerably less conservation attention, compared to plants and vertebrates. Here we add p...
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Hypotrachyna virginica warrants a status of critically endangered as its AOO and EOO are projected to reduce by >80% within its next three generations. Species distribution models projected to 2050 and 2070 using two different climate change models (CCSM4 and HadGEM2-AO) at the lowest and highest carbon dioxide concentration (2.6 and 8.5 rcp) were...
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Leprocaulon beechingii is described as new to science based on collections from exposed rock outcrops in the southern Appalachian Mountains in eastern North America. Taxonomic placement in Leprocaulon, and delimitation from other members of the genus with usnic acid, is supported by molecular phylogenetic analyses of ITS and mtSSU sequence data. Th...
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The first checklist of lichenized, lichenicolous and lichen-allied fungi from the Kathy Stiles Freeland Bibb County Glades Preserve in Bibb County, Alabama, is presented. Collections made during the 2017 Tuckerman Workshop and additional records from herbaria and online sources are included. Two hundred and thirty-eight taxa in 115 genera are enume...
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In this study we demonstrate the utility of whole genome shotgun (WGS) metagenomics in study organisms with small genomes to improve upon amplicon-based estimates of biodiversity and microbial diversity in environmental samples for the purpose of understanding ecological and evolutionary processes. We generated a database of full-length and near-fu...