| 摘要: |
| 该文基于形态学、解剖学、化学及分子系统学的方法,对采自中国泰山的黑蜈蚣叶属地衣进行了分类学研究,发现了1新种,即泰山黑蜈蚣叶(Phaeophyscia taishanensis)。该新种的主要特征为地衣体上表面末端具稀疏的皮层毛; 髓层白色; 下表面黑色,裂片末端处呈灰白色或浅褐色; 盘托上部偶有白色或浅色的皮层毛,常常稀疏可数; 子囊孢子褐色,厚壁,Physcia型,孢子大小为(18.0～20.5)μm ×(9.0～10.0)μm。该文还基于表型特征讨论了新种与相似种的异同,并基于分子数据以ITS序列构建最大似然系统发育树且进行了序列分析,同时提供了详细的形态学描述及特征图片。该新种的发现为蜈蚣衣科地衣生物多样性研究积累了基础资料。 |
| 关键词: 地衣型真菌, 粉衣目, 蜈蚣衣科, 系统发育, 分类学 |
| DOI：10.11931/guihaia.gxzw202311012 |
| 分类号:Q949.34 |
| 文章编号:1000-3142(2024)04-0621-08 |
| 基金项目:国家自然科学基金(37150001)。 |
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| A new species of the lichen genus Phaeophyscia (Physciaceae) |
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JIANG Shuhao, JIA Zefeng*
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College of Life Sciences, Liaocheng University, Liaocheng 252059, Shandong, China
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| Abstract: |
| Based on morphological, anatomical, chemical and molecular systematic methods, a taxonomic study was carried out on the lichen genus Phaeophyscia collected from Mount Tai. One species, P. taishanensis is reported as new to science. It is characterized by the following characters: white or hyaline cortical hairs sparsely on the upper surface of the marginal peripheral zones of the lobes; white medulla; black lower surface with sometimes white or pale brown ends; sparse cortical hairs occasionally on upper portion of thalline margin; and ascospores brown, Physcia-type, sized(18.0-20.5)μm ×(9.0-10.0)μm. Based on phenotypical characteristics, the similarities and differences between the new species and similar species were discussed. the maximum likelihood phylogenetic tree was constructed with ITS sequence, and the sequence analysis was carried out. A detailed morphological description and pictures of the characteristics of this new species are provided. The discovery of this new species has accumulated basic data for the study of Physciaceae biodiversity. |
| Key words: lichenized fungi, Caliciales, Physciaceae, phylogeny, taxonomy |
