Two new species of Lecaimmeria (lichenized Ascomycota, Lecideaceae) from Asia

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS ACS Applied Bio Materials Pub Date : 2024-02-10 DOI:10.1007/s11557-024-01954-4

引用次数: 0

Abstract

Two new species of the lichen genus Lecaimmeria are described and illustrated from Pakistan, namely, Lecaimmeria asiatica and L. crispula. The former taxon is characterized by pale brown to dark brown thallus, up to 2-mm large areoles, flat to strongly convex apothecial disc, taller hymenium 120–150 µm, apically branched, not anastomosing paraphyses, large conidia 5–7 × 1.1–1.4 µm, with respect to ecology, and the absence of secondary metabolites, whereas L. crispula can be characterized by having a light brown to chocolate brown thallus, apothecia having flat to slightly concave discs with wavy margins that curl inward, a tall hymenium150–180 μm, branched and anastomosing paraphyses, large ascospores 25–33 × 12–17 μm, and absence of secondary metabolites. A phylogenetic analysis is provided based on nrITS and nrLSU sequences that support the separation of both novel species. Comparative analyses with related species of Lecaimmeria are provided to confirm the status of these species.

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来自亚洲的两个 Lecaimmeria 新种（地衣拟子囊菌科，Lecideaceae）。

摘要本文描述并展示了产自巴基斯坦的地衣属 Lecaimmeria 的两个新种，即 Lecaimmeria asiatica 和 L. crispula。前一个分类群的特征是淡褐色至深褐色的菌体，长达 2 毫米的大窠，平至强烈凸起的顶盘，较高的膜片 120-150 µm，顶端分枝，副膜不吻合，大的分生孢子 5-7 × 1.1-1.4 µm，在生态学方面，没有次生代谢物；而 L. crispula 的特征是淡褐色至深褐色的菌体，长达 2 毫米的大窠，平至强烈凸起的顶盘，较高的膜片 120-150 µm，顶端分枝，副膜不吻合，大的分生孢子 5-7 × 1.1-1.4 µm。而 L. crispula 的特征则是：浅棕色至巧克力棕色的菌柄，具平至微凹圆盘的外皮，边缘呈波浪状向内卷曲，高大的膜片 150-180 μm，分枝和吻合的副膜，大的外生孢子 25-33 × 12-17 μm，无次级代谢物。根据 nrITS 和 nrLSU 序列进行的系统进化分析支持这两个新物种的分离。还提供了与 Lecaimmeria 相关物种的比较分析，以确认这些物种的地位。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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