Ferdinand Christian Gustav Arnold
... that the German lichenologist and taxonomist Ferdinand Christian Gustav Arnold had a personal herbarium of 150,000 specimens?
... that the German <a class="mw-redirect" href="./Lichenologist" id="mwFM0" rel="mw:WikiLink" title="Lichenologist">lichenologist</a> and <a class="mw-redirect" href="./Taxonomist" id="mwFM4" rel="mw:WikiLink" title="Taxonomist">taxonomist</a> <b id="mwFM8"><a href="./Ferdinand_Christian_Gustav_Arnold" id="mwFNA" rel="mw:WikiLink" title="Ferdinand Christian Gustav Arnold">Ferdinand Christian Gustav Arnold</a></b> had a personal <a href="./Herbarium" id="mwFNE" rel="mw:WikiLink" title="Herbarium">herbarium</a> of 150,000<span id="mwFNI" typeof="mw:Entity"> </span>specimens?