Abstract

Schistidium memnonium is described as a new species from Europe, based on molecular and morphological data. The species is described and illustrated, its affinities are discussed, and its current distribution mapped. The species is distinguished by its ovate to ovate-triangular leaves, unistratose lamina in lower part, occasionally with 2-stratose spots or short striae, in central and upper part varying from 1-stratose to 2-stratose in spots and striae, recurved leaf margins from the base to near the apex on both sides, in lower part mostly 1-2˗stratose for 1(2) rows, in upper and central part 2-3˗stratose for 1–2 rows and oblong to long rectangular or long obovate exothecial cells in central part. A table with characters to distinguish this species from S. brunnescens (both subspecies), two taxa morphologically very similar, and a phylogenetic analysis in order to detect relationships of the new species with nearby taxa, based on rDNA ITS region, are provided.

摘要

根据分子和形态学数据，人们将人们将Schistidium memnonium称为欧洲的新物种。描述和说明了该物种，讨论了其亲和力，并绘制了其当前分布。该种的特征是其卵形到卵形三角形的叶子，下部无直立叶片，偶尔在中部和上部有2-层状斑点或短纹，在斑点和条纹中从1-层状到2-层状不等，反曲叶从基部到两侧的先端的边缘，在下部的1-2（1）行中多数为1-2˗，在上部和在中央的2-3行的（1-2）行为长方形，长至长矩形或长在中心部分倒卵形外皮细胞。一张带有字符的表格，用于区分该物种与布氏链球菌 （两个亚种），提供了两个在形态上非常相似的分类单元，并进行了系统发育分析，以基于rDNA ITS区域检测新物种与附近分类单元的关系。