Data from: Herteliana schuyleriana (Squamarinaceae), a new crustose lichen widespread in the Appalachian Mountains of eastern North America

Herteliana schuyleriana is described as new to science based on collections from throughout the Appalachian Mountains of eastern North America. Taxonomic placement is inferred from molecular phylogenic analysis of mtSSU sequence data that recovered the taxon as sister to the type species of Herteliana, H. gagei, and strongly supported these taxa as embedded within the Squamarinaceae. The new species is characterized by its occurrence on non-calcareous shaded rocks in inland forested habitats (vs. exposed maritime oceanic habitats), its greenish-blue crustose thallus, presence of abundant blastidia on the thallus surface, frequent sterility, and by the production of roccellic/angardianic acid together with occasional trace amounts of psoromic acid as accessories to atranorin.

本研究基于北美东部阿巴拉契亚山脉全域的采集标本，将Herteliana schuyleriana描述为科学新种。其分类学地位借助线粒体小亚基（mtSSU）序列的分子系统发育分析得以推断：分析结果显示该类群与Herteliana属的模式种H. gagei构成姊妹群，且强有力地支持这两个类群隶属于鳞叶衣科（Squamarinaceae）。该新种具有如下鉴别特征：生长于内陆森林生境的非钙质荫蔽岩石之上（相较于暴露的海洋滨海生境）；具蓝绿色壳状地衣体（crustose thallus）；地衣体表面生有大量芽殖体（blastidia）；常表现为不育状态；可产生罗切来酸/安加尔地酸（roccellic/angardianic acid），并伴随少量痕量的索罗米酸（psoromic acid）作为阿特拉诺林（atranorin）的伴生代谢产物。