Data from: Lecanora anakeestiicola (Lecanorales): an unusual new fruticose species from Great Smoky Mountains National Park in eastern North America

The sterile asexually reproducing lichen Lecanora anakeestiicola is described as new to science from the southern Appalachian Mountains. This species is known from two populations that occur on shaded outcrops of the Anakeesta Formation at high elevations. It can be recognized by its dimorphic thallus with flaccid, ecorticate pseudopodetia and by the production of usnic acid in addition to zeorin. It is similar to Lecanora phryganitis, a narrow endemic of the Pacific Coast, which differs in the production of xanthones and in having tangled pseudopodetia that are stiff and hard due to the presence of a well developed cortex. It is also superficially similar to Leprocaulon americanum and L. quisquiliare, which are allopatric species that differ in having erect pseudopodetia with a stiff central cord.采自阿巴拉契亚山脉南部的Lecanora anakeestiicola是一种不产生有性繁殖结构的无性繁殖地衣，本次研究将其作为科学新种正式发表描述。该物种目前仅知有两个种群，均分布于高海拔区域的阿纳基斯塔组（Anakeesta Formation）阴蔽露头处。该种可通过以下特征鉴别：具有二型地衣体，着生有柔软松弛、无皮层的假柄（pseudopodetia），且除泽林酸（zeorin）外还可合成松萝酸（usnic acid）。该种与太平洋沿岸狭域特有种Lecanora phryganitis形态相近，但后者可产生呫吨酮类化合物（xanthones），且其假柄缠绕扭曲、质地坚硬，这是由于其具有发达的皮层结构所致。该种在外观上还与异地分布物种Leprocaulon americanum及L. quisquiliare相似，二者的区别在于后者的假柄直立，且带有坚硬的中央索结构。