<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">Quercus</topic></authority><related type="narrower"><topic>Quercus coccifera</topic></related><related type="narrower"><topic>Quercus infectoria</topic></related><related type="narrower"><topic>Quercus robur</topic></related><related type="narrower"><topic>Quercus cerris</topic></related><related type="narrower"><topic>Quercus laevis</topic></related><related type="narrower"><topic>Quercus velutina</topic></related><related type="narrower"><topic>Quercus macrocarpa</topic></related><related type="narrower"><topic>Quercus lobata</topic></related><related type="narrower"><topic>Quercus prinus</topic></related><related type="narrower"><topic>Quercus michauxii</topic></related><related type="narrower"><topic>Quercus muehlenbergii</topic></related><related type="narrower"><topic>Quercus prinoides</topic></related><related type="narrower"><topic>Quercus petraea</topic></related><related type="narrower"><topic>Quercus laurifolia</topic></related><related type="narrower"><topic>Quercus imbricaria</topic></related><related type="narrower"><topic>Quercus lyrata</topic></related><related type="narrower"><topic>Quercus virginiana</topic></related><related type="narrower"><topic>Quercus agrifolia</topic></related><related type="narrower"><topic>Quercus bicolor</topic></related><related type="narrower"><topic>Quercus palustris</topic></related><related type="narrower"><topic>Quercus stellata</topic></related><related type="narrower"><topic>red oak</topic></related><related type="narrower"><topic>white oak</topic></related><related type="narrower"><topic>Quercus alba</topic></related><related type="narrower"><topic>Quercus rubra</topic></related><related type="narrower"><topic>Quercus falcata</topic></related><related type="narrower"><topic>Quercus shumardii</topic></related><related type="narrower"><topic>Quercus coccinea</topic></related><related type="narrower"><topic>Quercus macrolepis</topic></related><related type="narrower"><topic>Quercus garryana</topic></related><related type="narrower"><topic>Quercus suber</topic></related><related type="narrower"><topic>Quercus ilex</topic></related><related type="other"><topic>acorns</topic></related><related type="other"><topic>oak</topic></related><related type="broader"><topic>Fagaceae</topic></related><variant type="other"><topic>oak</topic></variant><variant type="other"><topic>oake</topic></variant> <note xml:lang="en"><![CDATA[ Genus containing around 450 species of ornamental and timber trees and shrubs, found chiefly in north temperate regions and at high altitudes in the tropics. The durable wood has a distinctive coarse grain. The thick bark from some species is used for its buoyancy. Tannins and dyes can be extracted from the bark. Oak emits organic acids as it ages. Many plants commonly called "oak" are not Quercus, including African oak, Australian oak, bull oak, etc. ]]></note></mads>