<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Two subspecies of <italic>Pteridium aquilinum</italic> (L.) Kuhn: subsp. <italic>aquilinum</italic> and subsp. <italic>pinetorum</italic> occurring in Poland have been studied with respect to their micromorphological traits, in order to facilitate their differentiation. The micromorphology of marginal sori typical to <italic>Pteridium</italic> are described. Differences were found in the width of the outer membrane of indusium, the features of its edge (straight/notched) and the size and shape of the indusium cells. Moreover, the differentiating features turned out to be the frequency and length of the cillia on the edge of the indusium.</p>
</abstract>

Two subspecies of Pteridium aquilinum (L.) Kuhn: subsp. aquilinum and subsp. pinetorum occurring in Poland have been studied with respect to their micromorphological traits, in order to facilitate their differentiation. The micromorphology of marginal sori typical to Pteridium are described. Differences were found in the width of the outer membrane of indusium, the features of its edge (straight/notched) and the size and shape of the indusium cells. Moreover, the differentiating features turned out to be the frequency and length of the cillia on the edge of the indusium.

Characteristics of indusia and sori in the two subspecies of <italic>Pteridium aquilinum</italic> (L.) Kuhn. occurring in Poland

Department General Botany, Faculty of Biology

Department of Human Evolutionary Biology, Institute of Human Biology and Evolution, Faculty of Biology

Biodiversity Research and Conservation

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Characteristics of indusia and sori in the two subspecies of  (L.) Kuhn. occurring in Poland

Two subspecies of Pteridium aquilinum (L.) Kuhn: subsp. aquilinum and subsp. pinetorum occurring in Poland have been studied with respect to their...

Characteristics of indusia and sori in the two subspecies of Pteridium aquilinum (L.) Kuhn. occurring in Poland

Published Online: Nov 29, 2022

Page range: 1 - 8

Received: Aug 10, 2022

Accepted: Sep 30, 2022

DOI: https://doi.org/10.2478/biorc-2022-0010

Keywords
Bracken Fern, cilia, marginal sori, membranous indusium, Poland,

© 2022 Elżbieta Zenkteler et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Characteristics of indusia and sori in the two subspecies of Pteridium aquilinum (L.) Kuhn. occurring in Poland

Published Online: Nov 29, 2022

Page range: 1 - 8

Received: Aug 10, 2022

Accepted: Sep 30, 2022

DOI: https://doi.org/10.2478/biorc-2022-0010

KeywordsBracken Fern, cilia, marginal sori, membranous indusium, Poland,

© 2022 Elżbieta Zenkteler et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Bracken Fern, cilia, marginal sori, membranous indusium, Poland,