Bernstein, Aaron, Naturwissenschaftliche Volksbücher, Bd. 17-21, 1897

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          <p>
            <s xml:id="echoid-s1101" xml:space="preserve">
              <pb o="92" file="100" n="100"/>
            Eigentümlichkeiten (Fig. </s>
            <s xml:id="echoid-s1102" xml:space="preserve">50 und 51) hinſichtlich der Zerteilung
              <lb/>
              <figure xlink:label="fig-100-01" xlink:href="fig-100-01a" number="34">
                <caption xml:id="echoid-caption33" xml:space="preserve">Fig. 50.
                  <lb/>
                Rhodea Schimperi.</caption>
              </figure>
            und Geſtaltung der
              <lb/>
            ſpreitigen Fläche. </s>
            <s xml:id="echoid-s1103" xml:space="preserve">Wie
              <lb/>
            Erſtlingsblätter von
              <lb/>
            Pflanzen in ihrer Aus-
              <lb/>
            bildung Eigentümlich-
              <lb/>
            keiten der Hauptblätter
              <lb/>
            der Vorfahren lange
              <lb/>
            bewahren können, ſo
              <lb/>
            ſind vielleicht die Ad-
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            ventivfiedern, die doch
              <lb/>
            Primär- (Erſtlings-)
              <lb/>
            fiedern ſind, ebenfalls
              <lb/>
            auf den Ausſterbeetat
              <lb/>
            geſetzte Reſte, die aber
              <lb/>
            nicht bloß wie in an-
              <lb/>
            deren Fällen ihrer
              <lb/>
            Stellung, ſondern über-
              <lb/>
            dies auch ihrer Form
              <lb/>
            nach an weit entlegene
              <lb/>
            Bau-Verhältniſſe der
              <lb/>
            Vorfahren erinnern.
              <lb/>
            </s>
            <s xml:id="echoid-s1104" xml:space="preserve">Für die erwähnte Deu-
              <lb/>
            tung der Adventiv-
              <lb/>
            fiedern kann auch noch
              <lb/>
            die Thatſache verwertet
              <lb/>
            werden, daß ſie erſt
              <lb/>
            an Arten des ſpäteren
              <lb/>
            Altertums auftreten
              <lb/>
            und vor allem bei
              <lb/>
            Arten von der Aus-
              <lb/>
            bildung wie Rhodea
              <lb/>
            noch nicht </s>
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        </div>
      </text>
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