<?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">Lycophyta</topic></authority><related type="broader"><topic>Plantae</topic></related><variant type="other"><topic>Division Lycophyta</topic></variant><variant type="other"><topic>club moss</topic></variant><variant type="other"><topic>club mosses</topic></variant><variant type="other"><topic>club mosses and tree scales</topic></variant><variant type="other"><topic>club-mosses</topic></variant><variant type="other"><topic>lycopodiophytes</topic></variant> <note xml:lang="en"><![CDATA[ Small plant distinguished by the club-like shape of its upright fertile spore-cases and the very small microphylls, a kind of leaf that arose and evolved independently from the leaves of other vascular plants; the microphyll has only a single unbranched strand of vascular tissue. While this division is a small and inconspicuous group of plants today, in the Carboniferous some lycophytes were forest-forming trees more than 35 meters tall. Lycophytes are the oldest extant group of vascular plants, and dominated major habitats for 40 million years. ]]></note></mads>