01121nas a2200157 4500008004100000022001400041245008800055210006900143300001400212490000700226520059300233100002900826700002000855700002300875856006500898 2011 eng d a1055-317700aQuercus delgadoana (Fagaceae), a New Species from the Sierra Madre Oriental, Mexico0 aQuercus delgadoana Fagaceae a New Species from the Sierra Madre  a274–2770 v213 a

.  Quercus delgadoana S. Valencia, Nixon & L. M. Kelly (Fagaceae), a new species from the states of Hidalgo, Puebla, and Veracruz in the Sierra Madre Oriental, Mexico, is described and illustrated. We discuss its morphological similarity to Q. eugeniifolia Liebm., Q. sapotifolia Liebm., Q. salicifolia Née, Q. laurina Bonpl., and Q. affinis Scheidw., with which it shares narrowly lanceolate leaves and fasciculate stipitate trichomes in the axils of the secondary veins on the underside of the lamina. A dichotomous key is provided to distinguish these species.

1 aAvalos, Susana, Valencia1 aNixon, Kevin, C1 aKelly, Lawrence, M uhttp://www.bioone.org.proxy.uchicago.edu/doi/10.3417/200905401691nas a2200217 4500008004100000245009600041210006900137300001400206490000700220520098700227653001201214653003201226653001401258653001101272653002801283100002301311700003801334700002501372700003201397856004401429 2011 eng d00aThe taxonomic status of the Mexican oak Quercus undata (Fagaceae, Quercus, section Quercus)0 ataxonomic status of the Mexican oak Quercus undata Fagaceae Quer a1123-11310 v823 a

Quercus undata Trel. (Fagaceae, Quercus, Section Quercus) has a complex taxonomic and nomenclatural history. Intensive sampling of oaks at the type locality of Q. undata Trel. in Durango, Mexico and evaluation of herbarium specimens and plants in the field indicate that Q. undata represents variation in Quercus chihuahuensis Trel. in white oak communities where introgressive hybridization among Q. chihuahuensis, Q. grisea Liebm., and a third white oak, Q. arizonica Sarg. made species identification difficult. Endlich’s type specimen of Q. undata, as designated by Trelease, was apparently destroyed in bombing raids on Berlin during World War II, and we propose herein as lectotype the Trelease illustration of the type. An epitype is also designated in support of the lectotype, given that some features cannot be critically observed on the illustration. The long peduncles of the specimen illustrated by Trelease indicate a close relation to Q. chihuahuensis.

10aepitype10aintrogressive hybridization10alectotype10aMexico10aSierra Madre Occidental1 aBacon, Jeffrey, R.1 aDávila-Aranda, Patricia, Dolores1 aSpellenberg, Richard1 aGonzález-Elizondo, Socorro uhttps://quercus.myspecies.info/node/17901839nas a2200169 4500008004100000245011000041210006900151300001200220520123300232653005901465100002001524700001901544700002101563700001801584700002301602856004401625 2015 eng d00aLeaf phenology mediates provenance differences in herbivore populations on valley oaks in a common garden0 aLeaf phenology mediates provenance differences in herbivore popu an/a-n/a3 a

1. Plants from different populations often display a variation in herbivore resistance. However, it is rarely understood what plant traits mediate such differences. 2. It was tested how leaf phenology affects herbivore populations in a 15-year-old common garden of valley oaks (Quercus lobata Née) with different populations and maternal parents from throughout the Q. lobata range. 3. The abundance of leaf miners (Stigmella sp. Shrank) and leaf phenology of oaks in the common garden was measured. 4. Leaf miner abundance varied among provenance locations (population), but not among maternal parents within populations. Leaf phenology varied by provenance location and maternal parent, and trees that leafed out earlier accrued higher leaf-miner abundance. Path analysis indicated that leaf phenology was the likely driver of provenance and parental differences in resistance to leaf miners. 5. Understanding population differences is particularly important when considering transport of genotypes for ornamental or restoration purposes. The present study suggests that similarity in leaf phenology may be one factor that could be used to find genotypes with a similar herbivore resistance to local genotypes.

10aFolivory leaf mine local adaptation provenance Quercus1 aPearse, Ian, S.1 aBaty, Jill, H.1 aHerrmann, Dustin1 aSage, Richard1 aKoenig, Walter, D. uhttps://quercus.myspecies.info/node/17702458nas a2200229 4500008004100000020001400041245016200055210006900217300001200286520170600298653001102004653001202015653000902027653001402036653002202050100002302072700002102095700002002116700002302136700002502159856004402184 2013 eng d a1095-833900aApplication of plastid and nuclear markers to DNA barcoding of Euro-Mediterranean oaks (Quercus, Fagaceae): problems, prospects and phylogenetic implications0 aApplication of plastid and nuclear markers to DNA barcoding of E an/a-n/a3 aDNA barcoding, a species identification system based on sequences from a short, standardized DNA region, has emerged recently as a new tool for taxonomists. We investigated the discriminatory power of a subset of highly variable proposed plant barcoding loci (matK, trnH-psbA, ITS2) in Quercus, a taxonomically complex tree genus of global importance. The research included all currently recognized species and some major variants of the Mediterranean region and Europe (32 taxa) and 17 East Asian and North American species used for comparison. Based on sequence character state, we assigned unique plastid haplotypes to 40.8% of the investigated species; ITS2 increased the resolution up to 87.8% of total taxa. Nevertheless, unsuccessful genetic distance-based discrimination questioned the potential efficiency of correct species identification for future studies. Most species appeared to be nonmonophyletic in parallel phylogenetic tests. Three subgeneric groups were outlined, with different rates of within-group variability and geographical differentiation. Members of one of these groups (corresponding to the Eurasian Group Ilex) were paraphyletic to Group Quercus from the New and Old World and the Eurasian Group Cerris. The data gathered indicate that barcoding markers may help to identify closely related species clusters and contribute to the inference of major diversification and evolutionary patterns in oaks, but the methodology per se appears to be of limited efficacy in defining species limits, unless we make a profound revision of traditional Quercus taxonomic categories. © 2013 The Linnean Society of London, Botanical Journal of the Linnean Society, 2013, 00, 000–000.10acerris10aecology10ailex10aphylogeny10aregional sampling1 aSimeone, Marco, C.1 aPiredda, Roberta1 aPapini, Alessio1 aVessella, Federico1 aSchirone, Bartolomeo uhttps://quercus.myspecies.info/node/15701166nas a2200205 4500008004100000245012500041210006900166300001200235490000700247520054500254653001100799653000900810653002300819653001200842653001100854100001800865700001500883700001800898856004400916 2011 eng d00aCytogenetic studies on Quercus L. (Fagaceae) species belonging to Ilex and Cerris section in Turkey0 aCytogenetic studies on iQuercus iL Fagaceae species belonging to a297-3010 v643 aA detailed karyotype analyses of the five species of Quercus L. (Q. coccifera L., Q. ilex L., Q. aucheriJaub. & Spach, Q. cerris L. and Q. ithaburensis Decne subsp. macrolepsis (Kotschy) Hedge & Yalt.) belonging toIlex and Cerris section were examined. The somatic chromosome number of all studied taxa 2n = 24 was found.The karyotypes of investigated species showed the great similarity with the chromosome length and the positionof centromere. Chromosome number and detailed karyotype of these species were first time counted from Turkey.10acerris10ailex10aKaryotype analyses10aQuercus10aTurkey1 aAykut, Yilmaz1 aUslu, Emel1 aBabaç, Tekin uhttps://quercus.myspecies.info/node/13400363nas a2200121 4500008004100000245005700041210005500098260000900153300001200162490000700174100001700181856004300198 1979 eng d00aLectotypification of Quercus ellipsoidalis E.J. Hill0 aLectotypification of Quercus ellipsoidalis EJ Hill c1979 a154-1550 v291 aJensen, R.J. uhttps://quercus.myspecies.info/node/9300809nas a2200109 4500008004100000245004100041210003700082490000700119520050400126100002600630856004300656 1961 eng d00aThe Live Oaks of the Series Virentes0 aLive Oaks of the Series Virentes0 v653 aKey and descriptions of the 6 species and 1 variety are illustrated, distinctions being based upon morphological, geographic, and ecological (soil tolerance) data. New dispositions include Quercus minima Small X Q. chapmani Sarg. (r Q. rolfsii Small), Q. hemis- pherica var. maritima (= Q. phellos /3 maritima Michx. - not Q. vir- giniana var. maritima Sarg., a misidentification), Q. virginiana Mill. (= Q. oleoides var. quaterna C. H. Mull.), and Q. oleoides var. sagraeana (= Q. sagraeana Nutt.).1 aMuller, Cornelius, H. uhttps://quercus.myspecies.info/node/9900470nas a2200121 4500008004100000245015100041210006900192260000900261300001200270490000600282100001700288856004300305 1977 eng d00aNumerical analysis of the scarlet oak complex (Quercus subgen. Erythrobalanus) in the eastern United states: relationships above the species level0 aNumerical analysis of the scarlet oak complex Quercus subgen Ery c1977 a122-1330 v21 aJensen, R.J. uhttps://quercus.myspecies.info/node/9400378nas a2200121 4500008004100000245006400041210006400105260000900169300001200178490000600190100001700196856004300213 1986 eng d00aGeographic spatial autocorrelation in Quercus ellipsoidalis0 aGeographic spatial autocorrelation in Quercus ellipsoidalis c1986 a431-4390 v41 aJensen, R.J. uhttps://quercus.myspecies.info/node/8902888nas a2200157 4500008004100000245009900041210006900140300001000209490000700219520239600226100001702622700001502639700001502654700001802669856004302687 1997 eng d00aPopulation structure, genetic diversity, and clone formation in Quercus chrysolepis (Fagaceae)0 aPopulation structure genetic diversity and clone formation in Qu a1553-0 v843 aStands of canyon live oak (Quercus chrysolepis, Fagaceae) are maintained for fuelwood, fire management, recreation, and as habitat for wildlife. Information about the link between the oak’s reproductive ecology and its extent of genetic diversity is important in developing land management policies that will maintain the long-term viability of populations. Basal sprouting is the primary means of reproduction following fire or cutting, and stands frequently include groups of visibly connected trees in a clustered distribution that suggests cloning. We determined the extent to which clusters of trees were clonal and defined the spatial pattern and diversity of genotypes for six populations across nearly the entire east-west extent of the San Bernardino Mountains in southern California. We mapped over 100 trees at each of five sites and genotyped each tree for allozymes at seven polymorphic loci. We identified clones using these multilocus genotypes and detected an average of 34.4 ± 7.3 (SD) clones per site, most of which had unique genotypes. In general, clustered trees belong to single clones and most clones consist of few trees (mean = 3.4 ± 0.6 trees per clone). However, clone size increased significantly with increased individual heterozygosity, suggesting that selection may favor highly heterozygous clones. Clonal diversity and evenness were high relative to reports for most other clonal species; an average of 97% of clones had distinct genotypes, and Simpson’s index of diversity averaged 0.95 ± 0.02. Population genetic analyses of 319 clones from six sites revealed high genetic diversity within sites (mean HS = 0.443). Only a small proportion of the total genetic diversity was explained by variation among sites (mean GST = 0.018), which is consistent with high gene flow among sites (Nm = 9.5). We found no significant substructure among plots within sites, and fixation indices within sites were generally small, suggesting that either little inbreeding occurs, and/or few inbred progeny survive. However, spatial autocorrelation analysis of clones indicated fine-scale genetic structure at distances under 4 m, possibly due to limited seed dispersal. Our data suggest that guidelines for seed collection of canyon live oak for use in restoration can be specified in a manner similar to that recommended for conifer species within the region studied.1 aMontalvo, AM1 aConard, SG1 aConkle, MT1 aHodgskiss, PD uhttps://quercus.myspecies.info/node/7202760nas a2200493 4500008004100000245015100041210006900192260000900261300001200270490000800282520128200290653002301572653002301595653001801618653001401636653002601650653002401676653001201700653001901712653001301731653003701744653002901781653002801810653002401838653001401862653002001876653002201896653002001918653001801938653001501956653001301971653001201984653004401996653003002040653001802070653001902088653002002107653002402127653002002151100001602171700001702187700001902204856004302223 1993 eng d00aEvidence for local adaptation in closely adjacent subpopulations of northern Red Oak (Quercus rubra L.) expressed as resistance to leaf herbivores0 aEvidence for local adaptation in closely adjacent subpopulations c1993 a928-9360 v1423 aMany studies of herbaceous plant populations have illustrated the potential of adjacent subpopulations to adapt to local ecological conditions. However, the extent to which local adaptation on a small geographical scale can occur in outcrossing tree populations is not well understood. In this study, we reciprocally transplanted acorns from adjacent subpopulations of northern red oak (Quercus rubra L.) occupying north-, southwest-, and west-facing slopes within a 4-ha plot in a Missouri oak-hickory forest. The quantitative character we measured was leaf damage by herbivores on first-year seedlings, because it reflects resistance to insect herbivores-a quantitative trait that could be under different selective pressures in dissimilar microhabitats. We found that seedlings showed the least damage when planted at the site of the maternal plant. This finding provides initial but strong evidence of local adaptation and illustrates that selection associated with leaf herbivory may have a strong impact on the genetic structure of local tree populations. Such a result is unexpected for a widely outcrossing species on such a small geographical scale but indicates that genetic structuring is possible within other plant populations occupying heterogeneous environments.10a[26070-] Fagaceae-10a[33000-] Animalia-10aAngiospermae-10aAnimalia-10aAnimalia- (Animalia-)10aAnimalia-: Animals-10aDicots-10aDicotyledones-10aECOLOGY-10aEcology-: Environmental-Sciences10aEvolution-and-Adaptation10aFagaceae-: Angiosperms-10aGENETIC-STRUCTURING10aGenetics-10aMissouri-: USA-10aNATURAL-SELECTION10aNearctic-region10aNorth-America10aNutrition-10aPlantae-10aPlants-10aPopulation-Genetics: Population-Studies10aQuercus-rubra (Fagaceae-)10aReproduction-10aSpermatophyta-10aSpermatophytes-10aUSA-: North-America10aVascular-Plants1 aSork, V.-L.1 aStowe, K.-A.1 aHochwender, C. uhttps://quercus.myspecies.info/node/8004339nas a2200493 4500008004100000245007900041210006900120260000900189300001200198490000700210520295400217653001603171653002303187653002003210653001803230653004103248653001203289653001903301653001303320653003703333653002803370653002103398653002003419653002003439653001803459653001603477653001303493653001203506653002903518653003003547653002103577653001803598653002603616653001903642653002003661653001703681653002403698653002003722653001303742100001603755700001603771700001503787856004303802 1993 eng d00aEcology of mast-fruiting in three species of North American deciduous oaks0 aEcology of mastfruiting in three species of North American decid c1993 a528-5410 v743 aWe conducted an 8-yr study of flower and acorn production in three species of oak in east-central Missouri (USA): white oak (Quercus alba), red oak (Q. rubra), and black oak (Q. velutina). The goal was to evaluate whether mast -fruiting, the synchronous production of large seed crops followed by small seed crops, is simply a response to weather conditions or is actually an evolved reproductivity strategy. In this paper, we address four specific questions: (1) Are annual fluctuations in acron crop size the result of synchronous production of acorns by individuals? (2) Are large acorn crops the result of large flower crops and/or high survival of those flowers to mature fruit? (3) To what extent do weather variables account for variation in acorn production among years? (4) Does acorn crop size correlate negatively with prior acorn production? Red oak and white oak showed a greater degree of mast -fruiting than did black oak. Within a species, individuals tended to produce large acorn crops in the same years, but each species differed in which years they produced large crops. The size of a given acorn crop was determined by both flower abundance and survival of flowers to fruit. Principal components and multiple-regression analyses were used to describe the relationship between weather variables and acorn production. The first principal component explained the largest amount of the variation in black oak (R-2 = 0.55) and red oak (R-2 = 0.89). In white oak, two principal components combined to explain 77% of the variation in acorn production. The weather variables that were associated with these principal components included spring temperature (positive effect) and summer drought (negative effect). Past acorn production had a major impact on the size of the current acorn crop, with each species showing a different pattern. In black oak, the current acorn crop was negatively correlated with the crop 3 yr prior but positively correlated with the crop 2 yr prior. In red oak, acorn crop size 1, 2, and 3 yr prior had negative correlations with current acorn crop, while acorn crop size 4 yr prior was positively correlated. In white oak, there were negative correlations between acorn crop size and crop size 1, 2, and 4 yr prior but a positive correlation with the acorn crop size 3 yr prior. These data are consistent with the hypothesis that mast-fruiting species must store resources during some years in order to produce a mast crop. We discuss the possibility that these three species may have inherent cycles of reproduction that are modified by the impact of weather conditions, black oak with 2-yr cycles, white oak with 3-yr cycles, and red oak with 4-yr cycles. We conclude that the patterns of acorn production for black oak, red oak, and white oak are not simply responses to weather events but are also a function of prior reproductive events. This suggests that masting is an evolved reproductive strategy.10a(Fagaceae-)10a[26070-] Fagaceae-10aACORN-CROP-SIZE10aAngiospermae-10aClimatology-: Environmental-Sciences10aDicots-10aDicotyledones-10aDROUGHT-10aEcology-: Environmental-Sciences10aFagaceae-: Angiosperms-10aFLOWER-ABUNDANCE10aMissouri-: USA-10aNearctic-region10aNorth-America10aPhysiology-10aPlantae-10aPlants-10aQuercus-alba (Fagaceae-)10aQuercus-rubra (Fagaceae-)10aQuercus-velutina10aReproduction-10aREPRODUCTIVE-STRATEGY10aSpermatophyta-10aSpermatophytes-10aTEMPERATURE-10aUSA-: North-America10aVascular-Plants10aWEATHER-1 aSork, V.-L.1 aBramble, J.1 aSexton, O. uhttps://quercus.myspecies.info/node/7903254nas a2200493 4500008004100000245012000041210006900161260000900230300001400239490000700253520179700260653002302057653001802080653001802098653002602116653001202142653001902154653002802173653002202201653002202223653002002245653001802265653001302283653001202296653002002308653004402328653005402372653002502426653003802451653002102489653001902510653002002529653001902549653000902568653002002577100001602597700001702613700001802630700001702648700001602665700002302681700001302704856004302717 2002 eng d00aPollen movement in declining populations of California Valley oak, Quercus lobata: Where have all the fathers gone?0 aPollen movement in declining populations of California Valley oa c2002 a1657-16680 v113 aThe fragmented populations and reduced population densities that result from human disturbance are issues of growing importance in evolutionary and conservation biology. A key issue is whether remnant individuals become reproductively isolated. California Valley oak (Quercus lobata) is a widely distributed, endemic species in California, increasingly jeopardized by anthropogenic changes in biota and land use. We studied pollen movement in a savannah population of Valley oak at Sedgwick Reserve, Santa Barbara County, to estimate effective number of pollen donors (Nep) and average distance of effective pollen movement (delta). Using TWOGENER, our recently developed hybrid model of paternity and genetic structure treatments that analyses maternal and progeny multilocus genotypes, we found that current Nep = 3.68 individuals. Based on an average adult density of d = 1.19 stems/ha, we assumed a bivariate normal distribution to model current average pollen dispersal distance (delta) and estimated delta = 64.8 m. We then deployed our parameter estimates in spatially explicit models of the Sedgwick population to evaluate the extent to which Nep may have changed, as a consequence of progressive stand thinning between 1944 and 1999. Assuming that pollen dispersal distance has not changed, we estimate Nep was 4.57 individuals in 1944, when stand density was 1.48. Both estimates indicate fewer effective fathers than one might expect for wind-pollinated species and fewer than observed elsewhere. The results presented here provide a basis for further refinements on modelling pollen movement. If the trends continue, then ongoing demographic attrition could further reduce neighbourhood size in Valley oak resulting in increased risk of reproductive failure and genetic isolation.10a[26070-] Fagaceae-10aadult-density10aAngiospermae-10adeclining-populations10aDicots-10aDicotyledones-10aFagaceae-: Angiosperms-10agenetic-isolation10ahuman-disturbance10aNearctic-region10aNorth-America10aPlantae-10aPlants-10apollen-movement10aPopulation-Genetics: Population-Studies10aQuercus-lobata (Fagaceae-): California-Valley-oak10areproductive-failure10aSanta-Barbara-County: California-10aSedgwick-Reserve10aSpermatophyta-10aSpermatophytes-10aTWOGENER-model10aUSA-10aVascular-Plants1 aSork, V.-L.1 aDavis, F.-W.1 aSmouse, P.-E.1 aApsit, V.-J.1 aDyer, R.-J.1 aFernandez-M, J.-F.1 aKuhn, B. uhttps://quercus.myspecies.info/node/5602293nas a2200133 4500008004100000245014100041210006900182260000900251300001200260520181300272100001602085700001502101856004302116 2002 eng d00aGenetic differentiation of two california red oak species, Quercus parvula var. shreveii and Q. wislizeni, based on AFLP genetic markers0 aGenetic differentiation of two california red oak species Quercu c2002 a417-4263 aOaks are renowned for posing problems in defining species boundaries. One example is the case of the interior live oak complex that is usually taken to include two varieties of Quercus wislizeni from the Coast Ranges of California and the Sierra Nevada, and Q. parvula var. shreveii from the central coast of California. The latter taxon was separated from Q. wislizeni, and was recognized in The Jepson Manual, but still is not fully accepted, since its morphological separation is ambiguous. In an attempt to test differentiation of these two taxa, molecular genetic analysis was carried out using Amplified Fragment Length Polymorphism (AFLP) markers. A total of 202 individuals from 19 populations including Q. parvula var. shreveii, Quercus wislizeni, Q. kelloggii and Q. agrifolia were analyzed. Four primer sets generated 311 polymorphic band classes. Although species-specific markers were observed between Q. kelloggii and other members of the red oak group in California, fixed genetic differences were not apparent among Q. agrifolia, Q. parvula var. shreveii and Q. wislizeni. Cluster analysis and principal coordinate analysis revealed low levels of genetic differentiation among coast live oak, interior live oak and shreve oak. Cluster analysis also suggested that Q. agrifolia populations are more similar to populations of Q. parvula var. shreveii than to coastal populations of Q. wislizeni. This may reflect the relatively short time since divergence of these species. On the other hand, repetitive hybridization and introgression may have acted as a homogenizing factor for these genetic markers. The relatively high genetic similarity between Q. agrifolia and Q. parvula var. shreveii may have implications for the management of Sudden Oak Death in the limited range of the latter taxon.1 aKashani, N.1 aDodd, R.S. uhttps://quercus.myspecies.info/node/5002289nas a2200265 4500008004100000245013400041210006900175300001200244490000700256520147500263653001401738653002801752653001701780653001801797653002001815653001201835100002601847700003001873700001501903700001601918700001301934700002101947700001201968856004301980 2005 eng d00aGene flow and hybridisation in a mixed oak forest (Quercus pyrenaica Willd. and Quercus petraea (Matts.) Liebl.) in central Spain0 aGene flow and hybridisation in a mixed oak forest Quercus pyrena a457-4650 v953 aOaks are long-standing models for the study of gene flow and hybridisation. Temperate (Quercus petraea) and sub-Mediterranean (Quercus pyrenaica) oaks coexist in central Spain, showing remarkable differences in population size and structure. Q. petraea has a scattered distribution in central Spain, where it is at one of the southernmost limits of its range, and forms low-density stands; in contrast, Q. pyrenaica is widespread in the region. We selected a mixed population of the two species (approx13 ha, 176 adults and 96 saplings) to compare the patterns of gene flow within each species and the extent of introgression between them. Using five nuclear microsatellite markers, we performed a parentage analysis and found considerable immigration from outside the stand (approx38% for Q. petraea and approx34% for Q. pyrenaica), and estimated average seed-dispersal distances of 42 and 14 m for Q. petraea and Q. pyrenaica, respectively. Introgression between species was also estimated using our microsatellite battery. First, we developed a multivariate discriminant approach and, second, we compared our results with a widely used clustering method (STRUCTURE). Both analyses were consistent with a low level of introgression between Q. petraea and Q. pyrenaica. Indeed, only 15 adult trees, approx8.5%, were identified as putative hybrids when both methods of analysis were combined. Hybrids may be most common in contact zones due merely to physical proximity.10agene flow10agenetic differentiation10ahybrid zones10aintrogression10amicrosatellites10aQuercus1 aValbuena-Carabana, M.1 aGonzalez-Martinez, S., C.1 aSork, V.L.1 aCollada, C.1 aSOTO, A.1 aGoicoechea, P.G.1 aGil, L. uhttps://quercus.myspecies.info/node/3600438nas a2200121 4500008004500000245009700045210006900142260001300211100001500224700001600239700001900255856004200274 In Press eng d 00aWho am I this time? The affinities and misbehaviors of Hill’s oak (Quercus ellipsoidalis).0 aWho am I this time The affinities and misbehaviors of Hill s oak cIn press1 aHipp, A.L.1 aWeber, J.A.1 aSrivastava, A. uhttps://quercus.myspecies.info/node/100431nas a2200121 4500008004100000245011200041210006900153260000900222300001000231490000700241100001800248856004300266 2009 eng d00aA review of the taxonomic status of Quercus ellipsoidalis and Quercus coccinea in the Eastern United States0 areview of the taxonomic status of Quercus ellipsoidalis and Quer c2009 a65-840 v201 aShepard, D.A. uhttps://quercus.myspecies.info/node/1101930nas a2200193 4500008004100000245008800041210006900129260000900198300001200207490000700219520128300226653005101509653001801560653001701578653002801595100001501623700001601638856008201654 2008 eng d00aTaxonomy of Hill’s Oak (Quercus ellipsoidalis: Fagaceae): Evidence from AFLP Data0 aTaxonomy of Hill s Oak Quercus ellipsoidalis Fagaceae Evidence f c2008 a148-1580 v333 aAbstract:Quercus ellipsoidalis (Hill’s oak), an endemic of east-central North America, is morphologically similar to Q. coccinea (scarlet oak) and is subsumed into that species in several floristic treatments. This study uses data from more than 250 amplified fragment length polymorphism (AFLP) markers to investigate whether Q. coccinea and Q. ellipsoidalis are genetically distinct from one another. Whereas Q. coccinea and Q. ellipsoidalis separate from one another in all analyses, Q. velutina (black oak) populations collected from the geographic range of both Q. coccinea and Q. ellipsoidalis do not separate out by geographic region. This, combined with the strong differentiation between Q. coccinea and Q. velutina but weak differentiation between Q. ellipsoidalis and Q. velutina, supports the view that Q. coccinea and Q. ellipsoidalis are not simply regional variants of a single taxon. Moreover, while there is no evidence from the molecular data we collected of hybridization between Q. coccinea and Q. ellipsoidalis, the data suggest that there may be gene flow between Q. ellipsoidalis and Q. velutina. A clearer understanding of the relationships among these taxa is essential to understanding the taxonomy of Quercus section Lobate in eastern North America.10aAMPLIFIED FRAGMENT LENGTH POLYMORPHISMS (AFLP)10aHYBRIDIZATION10aOAK TAXONOMY10aQUERCUS SECTION LOBATAE1 aHipp, A.L.1 aWeber, J.A. uhttp://www.ingentaconnect.com/content/aspt/sb/2008/00000033/00000001/art0001701063nas a2200217 4500008004100000245015500041210006900196260000900265300001200274490000800286520036400294100002000658700001500678700001400693700001800707700001300725700001400738700001500752700001600767856006200783 2009 eng d00aAge Structure and Genetic Diversity of Four Quercus macrocarpa (Michx.) Populations in Fragmented Oak Savanna along the Central Minnesota River Valley0 aAge Structure and Genetic Diversity of Four Quercus macrocarpa M c2009 a301-3120 v1613 aOnly 0.02% of historic oak savanna exists today. To provide management recommendations, we characterized age-class structure, measured cover of competing tree species and estimated genetic variation within and among four Quercus macrocarpa Michx (bur oak) populations in the Minnesota River Valley. At each site, few middle-aged bur oaks existed, most were 901 aKittelson, P.M.1 aPinahs, C.1 aDwyer, J.1 aIngersoll, A.1 aMans, E.1 aRieke, J.1 aRutman, B.1 aVolenec, M. uhttp://www.bioone.org/doi/abs/10.1674/0003-0031-161.2.301