Manual of Vascular Plants of Northeastern United States and Adjacent Canada

Gleason, H. A.; Cronquist, Arthur

doi:10.21135/893273651.001

Cited by 1,376 publications

(1,313 citation statements)

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“…Invasive exotics were defined conservatively such that they each existed on multiple MidAtlantic state lists as noxious or invasive (Harmon, 1999; Pennsylvania Department of Conservation and Natural Resources, 2000; Virginia Department of Conservation and Recreation and Virginia Native Plant Society, 2001). Exotic species were defined by non-native status as given in at least one taxonomic key (Gleason and Cronquist, 1993;Rhoades and Block, 2000).…”

Section: Variablesmentioning

confidence: 99%

Patterns of exotic plant invasions in Pennsylvania’s Allegheny National Forest using intensive Forest Inventory and Analysis plots

Huebner

Morin

Zurbriggen³

et al. 2009

Forest Ecology and Management

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Section: Variablesmentioning

confidence: 99%

Patterns of exotic plant invasions in Pennsylvania’s Allegheny National Forest using intensive Forest Inventory and Analysis plots

Huebner

Morin

Zurbriggen³

et al. 2009

Forest Ecology and Management

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“…At a point in each quadrat above the fourth soil sample, we also noted the plant species whose shoots contacted a 1 cm diameter stake held vertically over the sample point. Plant species nomenclature followed Gleason & Cronquist (1991).…”

Section: Data Collectionmentioning

confidence: 99%

Relationships among arbuscular mycorrhizal fungi, vascular plants and environmental conditions in oak savannas

2004

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Summary• We studied the relationships of plant and AMF (arbuscular mycorrhizal fungi) species richness and community composition to each other and gradients in soil texture, nutrient content, and light availability in three oak savannas in southern Wisconsin, USA.• Sixty-three samples were analysed for plant and AMF composition along sun-shade and sand-loam gradients. Samples consisted of plant community composition at quadrat and point scales, point-scale AMF community composition, canopy transmittance, soil Kjeldahl nitrogen (N) content, available phosphorus (P), and texture.• Numbers of AMF and plant species at the point scale were positively correlated with each other and increased with soil texture/N content. The compositions of plant and AMF communities were also significantly correlated with each other and the soils gradient. The paradoxical increase in AMF richness on the most fertile soils may reflect their small soil pores or low P : N ratios.• Plant and AMF communities appear to respond to underlying environmental gradients in similar ways, perhaps reflecting similar responses to soil conditions by both groups, effects of one group on the other or both.

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“…graminifolia L. Nutt. (Asteraceae), the flat-topped goldenrod, is a rhizomatous perennial herb that was formerly classified as a member of the genus Solidago (formerly Solidago graminifolia , Gleason & Cronquist, 1991). Unlike the common goldenrod ( Solidago canadensis ), E. graminifolia is a guerilla-type species ( sensu Lovett Doust, 1981), characterized by rapid clonal spread via rhizomes and almost no recruitment from seed in established populations (Price, 2003).…”

Section: Study Systemmentioning

confidence: 99%

Genotype, environment, and genotype by environment interactions determine quantitative resistance to leaf rust (Coleosporium asterum) in Euthamia graminifolia (Asteraceae)

2004

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Summary• The strength and consistency of genotypic differences in disease resistance determine the potential for resistance evolution in host populations that rely on vegetative reproduction. Here we surveyed infection intensity of host genotypes across space and time to estimate genotypic and environmental effects on quantitative disease resistance.• Cloned fragments of 12 Euthamia graminifolia genotypes were grown in unweeded experimental fields and outdoor pots. Infection intensity was surveyed during 2 yr of natural infection by the non-systemic rust pathogen, Coleosporium asterum .• Five of six surveys detected infection intensity differences among genotypes, despite substantial variation in mean infection intensity across surveys. When resistance was defined relative to local pathogen density, 10 -40% of resistance variation was due to host genotype. Although two genotypes exhibited greater resistance across environments, G × E interactions in resistance were common. Furthermore, infection intensity was unrelated to host size.• We conclude that quantitative resistance level can evolve in this system and show how logistic analysis (relative to local pathogen density) can provide insight into the mechanism(s) responsible for G × E interactions in infection intensity.

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Manual of Vascular Plants of Northeastern United States and Adjacent Canada

Cited by 1,376 publications

References 0 publications

Patterns of exotic plant invasions in Pennsylvania’s Allegheny National Forest using intensive Forest Inventory and Analysis plots

Patterns of exotic plant invasions in Pennsylvania’s Allegheny National Forest using intensive Forest Inventory and Analysis plots

Relationships among arbuscular mycorrhizal fungi, vascular plants and environmental conditions in oak savannas

Genotype, environment, and genotype by environment interactions determine quantitative resistance to leaf rust (Coleosporium asterum) in Euthamia graminifolia (Asteraceae)

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