Data from: Lecanora layana (Lecanoraceae), a new sorediate species widespread in temperate eastern North America

Lecanora layana is described as new to science based on collections from throughout temperate eastern North America. The species is sorediate and both morphologically and chemically similar to L. nothocaesiella, differing in the production of stictic acid in addition to atranorin and zeorin. As apothecia are unknown in L. layana, the hypothesized generic placement and relationship with L. nothocaesiella were confirmed with molecular phylogenetic analyses of mtSSU sequence data.

本研究基于北美东部温带全域的采集标本，将莱坎纳茶渍（Lecanora layana）描述为科学新种。该物种具粉芽结构，形态与化学特征均与假凯西茶渍（Lecanora nothocaesiella）相似；其与后者的区别在于，除含有阿特拉诺林（atranorin）与泽奥林（zeorin）外，还可合成斑点酸（stictic acid）。由于目前尚未发现莱坎纳茶渍的子囊盘结构，研究通过线粒体小亚基（mtSSU）序列数据的分子系统发育分析，证实了其属级分类地位的假设，以及其与假凯西茶渍的亲缘关系。