| 摘要: |
| 为探讨奥氏衣属(Oxneriaria)地衣在新疆的物种多样性,该文通过形态学、解剖学和化学分析,并结合rDNA-ITS序列构建物种系统发育树等研究方法,对采自我国新疆的奥氏衣属标本进行了详细的分类学研究。结果表明:(1)共鉴定出3个奥氏衣属中国新记录种,分别是超隐奥氏衣 [O. supertegens(Arnold)S. Y. Kondr. & Lökös]、疣奥氏衣 [O. verruculosa(Kremp.)S. Y. Kondr. & Lökös]和列奥氏衣 [O. permutata(Zahlbr.)S. Y. Kondr. & Lökös],并提供了这3个新记录种的详细描述和内外部形态结构解剖图,此外还对其相近物种进行了对比讨论。(2)超隐奥氏衣的特征是地衣体深灰色至灰棕色略带紫色色调,具黑色的前地衣体,子囊盘网块状,茶渍型,子实层厚89.5～135.0 μm,子囊8孢,子囊孢子大小为(16.0～25.5)μm ×(12.0～16.5)μm; 疣奥氏衣的特征是具疣状的地衣体和像坛状的子囊盘,子囊盘平茶渍型,子实层厚70.5～95.0 μm,子囊8孢,子囊孢子大小为(12.0～17.5)μm ×(7.5～13.5)μm,含stictic acid; 列奥氏衣的特征是地衣体不平坦且粗糙呈疣状,子囊盘平茶渍型,子实层厚100～115 μm,子囊8孢,子囊孢子大小为(15.0～22.0)μm ×(9.0～12.5)μm。该研究结果将我国奥氏衣属物种数由3种提升至6种,占全球总种数的32%,丰富了我国奥氏衣属地衣的基础资料。 |
| 关键词: 地衣型真菌, 巨孢衣科, 分类学, 系统发育, 新疆 |
| DOI：10.11931/guihaia.gxzw202412048 |
| 分类号:Q949.34 |
| 文章编号:1000-3142(2026)02-0273-08 |
| Fund project:国家自然科学基金(32560001, 32160046)。 |
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| Three new records of the lichen genus Oxneriaria from China |
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YONG Haiying, TUMUR Anwar*
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College of Life Science and Technology, Xinjiang University, Urumqi 830017, China
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| Abstract: |
| In order to explore the diversity of Oxneriaaria in Xinjiang, morphological, anatomical, chemical analyse, and combined with phylogenetic analysis based on rDNA-ITS sequences, are used to conduct a detailed taxonomic study on Oxneriaria specimens collected from Xingjiang, China. The results are as follows:(1)A total of three Oxneriaria lichens belong to the Chinese new record species, namely O. supertegens(Arnold)S. Y. Kondr. & Lökös, O. verruculosa(Kremp.)S. Y. Kondr. & Lökös, and O. permutata(Zahlbr.)S. Y. Kondr. & Lökös. Detailed descriptions and anatomical diagrams of the internal and external morphological structures of these three new record species are provided. In addition, similar species are compared and discussed.(2)O. supertegens is characterized by the dark gray to gray-brown with a slightly purple tinge, with black prothallus, apothecium dictyoplast, lecanorine, hymenium 89.5-135.0 μm, 8-spored asci, ellipsoid ascospores(16.0-25.5)μm ×(12.0-16.5)μm; O. verruculosa is characterized by a wart-like thallus and like altar-shaped apothecium, apothecium aspiciloid, hymenium 70.5-95.0 μm, 8-spored asci, ellipsoid ascospores(12.0-17.5)μm ×(7.5-13.5)μm, and contains stictic acid; O. permutata is characterized by the uneven and rough surface of thallus, apothecium aspiciloid, hymenium 100-115 μm, 8-spored asci, ellipsoid ascospores(15.0-22.0)μm ×(9.0-12.5)μm. The research results have increased the number of Oxneriaria species in China from 3 to 6,accounting for 32% of the total global species, enriching the basic data of Oxneriaria lichens in China. |
| Key words: lichenized fungi, Megasporaceae, taxonomy, phylogeny, Xinjiang |
