<?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">Acer nigrum</topic></authority><related type="other"><topic>black maple</topic></related><related type="broader"><topic>Acer</topic></related><variant type="other"><topic>black maple</topic></variant> <note xml:lang="en"><![CDATA[ Species of maple closely related to sugar maple (A. saccharum), and in some classifications treated as a subspecies; the situation is complicated by the fact that the two species tend to form hybrids. The two species may be distinguished by number of leaf lobes: the black maple has three-lobed leaves and the sugar maple has five-lobed leaves.  ]]></note></mads>