@article {46,
	title = {Lectotypification of Quercus ellipsoidalis E.J. Hill},
	journal = {Taxon},
	volume = {29},
	year = {1979},
	month = {1979},
	pages = {154-155},
	author = {Jensen, R.J.}
}
@article {118,
	title = {A preliminary numerical analysis of the red oak complex in Michigan and Wisconsin USA},
	journal = {Taxon},
	volume = {26},
	year = {1977},
	note = {197865044113Taxa studied: Q. palustris {\textendash} 2 individuals, MI Q. coccinea {\textendash} 4 individuals, OH Q. velutina {\textendash} 4 ind{\textquoteright}ls, MI, WI, IA Q. ellipsoidalis {\textendash} 5 individuals, MI, WI IL (the latter being the syntype from Miami OH herbarium) Q. rubra {\textendash} 7 ind{\textquoteright}ls, MI, WI Putative hybrids: 18 (5 WI, 13 MI) Methods 20 morphological characters chosen based on their utitlity for distinguishing taxa 2nd dataset of 18 ratios derived from the above 1. Datasets used to produce a cha4racter-by-character correlation matrix, subject to PCA. OTUs then projected onto principal components. 2. Directed minimum spanning graph superimposed over points. Results 1. Q. rubra and Q. coccinea form the most distinct clusters 2. Q. palustris (2 OTUs) forms a tight cluster, but oddly, the nearest neighbor of each is a Q. rubra (in the raw dataset) 3. Hybrids in the raw dataset are centrally located among the species clusters, mostly closest to Q. ellipsoidalis, Q. velutina, and Q. palustris. In the transformed data, all putative hybrids fall between the Q. ellipsoidalis and Q. velutina clusters.},
	month = {1977},
	pages = {399-407},
	abstract = {Individuals representing 5 taxa [Quercus coccinea, Q. ellipsoidalis, Q. palustris, Q. rubra and Q. velutina] and numerous unidentified OTU [operational taxonomic unit] of red oaks native to the western Great Lakes region of the USA were examined through principal components analysis. Two data sets, 1 consisting of 20 untransformed characters and 1 in which various characters were redefined as ratios, were employed for comparative analysis. Although minor differences are noted, the 2 data sets provide essentially the same view of the relationships between the included OTU. The 5 taxa appear to form more or less discrete groups with the unidentified OTU occupying positions of intermediacy. The results support previous conclusions that extensive hybridization occurs among the red oaks of this geographic region.},
	keywords = {-HYBRIDIZATION, -QUERCUS-VELUTINA-OPERATIONAL-TAXONOMIC-UNIT-PRINCIPAL-COMPONENTS-ANALYSIS, -Taxonomy, [26070-] Fagaceae-, Angiospermae-, Biogeography-: Population-Studies, Computational-Biology, Dicots-, Dicotyledones-, Fagaceae-: Angiosperms-, Genetics-, Mathematical-Biology:, Plantae-, Plants-, Population-Genetics: Population-Studies, QUERCUS-COCCINEA-QUERCUS-ELLIPSOIDALIS-QUERCUS-PALUSTRIS-QUERCUS-RUBRA, Spermatophyta-, Spermatophytes-, Systematics-and, Vascular-Plants},
	author = {Jensen, R.J.}
}
@article {91,
	title = {The species concept in Quercus},
	journal = {Taxon},
	volume = {24},
	year = {1975},
	note = {doi:10.2307/1218998},
	month = {1975},
	pages = {45 - 50},
	author = {Burger, W.}
}
@article {124,
	title = {Multi-marker phylogeny of three evergreen oaks reveals vicariant patterns in the Western Mediterranean},
	journal = {Taxon},
	volume = {56},
	year = {2007},
	note = {TY - JOUR},
	month = {2007},
	pages = {1209-9E},
	abstract = {Nuclear (AFLPs and ITSs) and chloroplast DNA markers (cpDNA) were analysed in Quercus suber L., Q. ilex L. and Q. coccifera L. in order to detect vicariant patterns in the Western Mediterranean Basin populations. Clustering methods, i.e., parsimony, minimum spanning network, UPGMA and PCO, were used to obtain robust phylogenies. The Mantel test was used to check the geographic structure of the populations. Nuclear markers{\textquoteright} based phylogenies showed high bootstrap values at basal nodes of clusters indicative of species. Within species, Q. suber and Q. ilex showed three and two groups respectively with strong geographic structure for cytoplasmic and nuclear markers. In contrast, Q. coccifera had overlapping cpDNA lineages and nuclear markers did not show any group with strong geographic structure. Taxonomic assignation of the species was well-supported by our data. Ongoing allopatric speciation was inferred for Q. suber and Q. ilex derived from Pliocene vicariant events. Quercus coccifera showed a more homogeneous genetic pattern in the Western Mediterranean.},
	keywords = {AFLP phylogeny},
	url = {http://www.ingentaconnect.com/content/iapt/tax/2007/00000056/00000004/art00016},
	author = {de Heredia, U.L. and Jim and Collada, C. and SIMEONE, M.C. and BELLAROSA, R. and SCHIRONE, B. and Cervera, M.T. and Gil, L.}
}
