中国奥氏衣属Oxneriaria地衣二新种  

Two new species of the lichen genus Oxneriaria from China

作　　者：王思颖 赵格格 牛东玲[1] 梁咏亮 朱亚超 孙浩然 WANG Siying;ZHAO Gege;NIU Dongling;LIANG Yongliang;ZHU Yachao;SUN Haoran(School of Life Sciences,Ningxia University,Yinchuan 750021,Ningxia,China;Ningxia Helan Mountain National Nature Reserve Administration,Yinchuan 750021,Ningxia,China;Helan Mountain Forest Ecosystem Field Scientific Observatory of Ningxia Hui Autonomous Region,Yinchuan 750000,Ningxia,China)

机构地区：[1]宁夏大学生命科学学院,宁夏银川750021 [2]宁夏贺兰山国家级自然保护区管理局,宁夏银川750021 [3]贺兰山森林生态系统宁夏回族自治区野外科学观测研究站,宁夏银川750000

出　　处：《菌物学报》2024年第11期28-36,共9页Mycosystema

基　　金：2023年中央财政林业草原生态保护恢复资金贺兰山国家级自然保护区补助项目(D6400000141010230-7)。

摘　　要：该研究报道了产自中国的2个奥氏衣属Oxneriaria地衣新种:平坦奥氏衣Oxneriaria applanata和密盘奥氏衣Oxneriariadensa,并提供了它们详细的描述和形态图。通过形态学、解剖学和化学分析,并结合rDNA-ITS序列构建系统发育树对物种进行鉴定。Oxneriaria applanata的特征是地衣体平坦,边缘有裂片,子囊盘表面因被有增生的菌丝团而不可见,子实层厚220–260μm,囊层基厚150–220μm,子囊6(–8)孢,子囊孢子大小为30–42×12–26μm,含有斑点酸和2种未知萜类化合物。Oxneriariadensa的特征是地衣体具疣状网眼,子囊盘密集,坛状,茶渍型,子实层厚140–175μm,囊层基厚75–110μm,子囊(6–)8孢,子囊孢子大小为21–32×14–24μm,含有斑点酸和2种未知萜类化合物。该研究结果丰富了中国奥氏衣属地衣的基础资料。Oxneriaria applanata and Oxneriaria densa from China are described as new to science.Detailed descriptions and morphological illustrations are provided.Species are classified by morph-anatomical,chemical and phylogenetic analysis of rDNA-ITS sequences.Oxneriaria applanata is characterized by the flat,peripherally lobate thallus,aspicilioid apothecia,disc covered by hyperplastic hyphal cluster,hymenium 220–260μm,hypothecium 150–220μm,6(–8)-spored asci,ellipsoid ascospores(30–42×12–26μm),and the presence of stictic acid and two unknown terpenoids.Oxneriaria densa is characterized by thallus with warty reticulation,lecanorine apothecia sessile,urceolate and dense,hymenium 140–175μm thick,hypothecium 75–110μm thick,(6–)8-spored asci,ellipsoid ascospores(21–32×14–24μm),and the presence of stictic acid and two unknown terpenoids.

关 键 词：地衣型真菌 巨孢衣科 系统发育树 分类学 新种 

分 类 号：Q949.34[生物学—植物学]