TY - JOUR AU - Parmasto, Erast PY - 2007/09/19 Y2 - 2024/03/28 TI - Phellinus laevigatus s. l. (Hymenochaetales): a ring species JF - Folia Cryptogamica Estonica JA - Folia Cryptog. Estonica VL - 43 IS - 0 SE - Articles DO - UR - https://ojs.utlib.ee/index.php/FCE/article/view/13753 SP - 39-49 AB - <div class="page" title="Page 1"><div class="layoutArea"><div class="column"><p><em>Phellinus laevigatus </em><span>s. l. has evolved as a ring species, which was distributed in Paleocene from the eastern part of Asia via North America to Europe and further to West Siberia. As a result of clinal variation of basidiospores, three allopatric taxa in two species evolved. Of the two species (European–West Siberian </span><em>Ph. laevigatus </em><span>s. str. and </span><em>Ph. betulinus </em><span>(Murrill) Parmasto, comb. nova), latter is composed of two subspecies (ssp. </span><em>betulinus </em><span>and ssp. </span><em>orienticus </em><span>Parmasto ssp. nova), one distributed in North America and the other in East Asia. </span></p></div></div></div> ER -