厚基衣属(文字衣科)地衣一新种  

A new species of the lichen genus Leiorreuma(Graphidaceae)from China

作　　者：崔璨[1] 蒋树浩 李洋 郝成悦 贾泽峰[1] CUI Can;JIANG Shuhao;LI Yang;HAO Chengyue;JIA Zefeng(College of Life Sciences,Liaocheng University,Liaocheng 252059,Shandong,China)

机构地区：[1]聊城大学生命科学学院,山东聊城252059

出　　处：《菌物学报》2024年第11期37-45,共9页Mycosystema

基　　金：山东省自然科学基金(ZR2023QC245);国家自然科学基金(31750001);聊城大学博士启动金(318052130)。

摘　　要：在对中国厚基衣属地衣型真菌资源的调查研究中,根据形态学、解剖学、化学及多基因(nu LSU、mt SSU、RPB2)系统发育分析,鉴定出1个新种,即多晶厚基衣Leiorreumapolycrystallinum。该种的主要特征为子囊盘线形,体质边缘完全覆盖,其内晶体丰富;盘唇全缘;盘面黑色,张开状,覆有白色粉霜;盘被完全炭化,基部发育良好;子囊含2–8孢子;子囊孢子褐色,具5–10隔,横隔透镜型,大小为(36–)41.5–47×7–9.5μm。本文提供了该新种的系统发育树、分类学描述以及形态、解剖学特征图片。此外,本文提供了我国已知8种厚基衣属地衣的分种检索表。Based on morphological,anatomical,chemical and molecular systematic methods,a new species,Leiorreuma polycrystallinum,was discovered in the investigation of lichen resources from China.It is characterized by the following characters:thallus crustose;apothecia lirelliform;thalline margin completely covering the proper excipulum,with abundant crystals;labia entire;disc black,opened,with white pruina;exciple completely carbonized,with well developed basal exciple;asci 2–8-spored;ascospores brown,transversely septate,5–10-septate,(36–)41.5–47×7–9.5μm.A phylogenetic tree,morphological descriptions,and pictures of the new species were provided.The similarities and differences between the new species and similar species were discussed.A key to the known Leiorreuma species from China was also provided.

关 键 词：地衣型真菌 厚顶盘目 系统发育 分类学 新种 

分 类 号：Q949.34[生物学—植物学]