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报道了文字衣属Graphis 2个新种和2个中国新记录种。新种疣体文字衣Graphis verrucata 和魏氏文字衣 G. weii分别采自四川和海南;新记录种钝盘文字衣Graphis cognata采自海南和浙江,树突文字衣G. dendrogramma采自福建。文中对新种提供了详细描述和显微结构图片。 相似文献
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通过形态学、解剖学、化学与分子系统学相结合的方法对采自巴音布鲁克自然保护区的地衣进行分类学研究,发现石鳞衣属地衣一新种——白缘石鳞衣Gypsoplaca albimarginata。新种的主要特征为地衣体具白色边缘、假根,子囊盘红褐色、镶嵌在鳞片表面。本研究对该种进行了详细的形态特征描述,并与其相似种进行了比较和讨论。 相似文献
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该文报道了中国文字衣科地衣一新记录属——裂孔衣属(Schizotrema Mangold & Lumbsch)及其1个新记录种,即瓜岛裂孔衣 [Schizotrema guadeloupense(Hale)Mangold & Lumbsch],标本来自云南。该属主要特征为地衣体壳状,树皮生,具子囊盘类或色盘衣类的子囊果,子囊果具再生层状边缘,固有盘被融合或不明显,具侧生侧丝,子囊孢子横隔透镜或砖壁型。瓜岛裂孔衣也是亚洲新记录种。此外,该文还对裂孔衣属其他5种的生态分布特征进行了描述,并提供了该属世界范围检索表。以上结果为文字衣科地衣的分类学研究提供了基础资料。 相似文献
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Pradeep K. Divakar Steven D. Leavitt M. Carmen Molina Ruth Del‐Prado H. Thorsten Lumbsch Ana Crespo 《Botanical journal of the Linnean Society. Linnean Society of London》2016,180(1):21-29
Accurate specimen identification is challenging in groups with subtle or scarce taxonomically diagnostic characters, and the use of DNA barcodes can provide an effective means for consistent identification. Here, we investigate the utility of DNA barcode identification of species in a cosmopolitan genus of lichen‐forming fungi, Parmelia (Parmeliaceae). Two hundred and two internal transcribed spacer (ITS) sequences generated from specimens collected from all continents, including Antarctica, were analysed, and DNA barcodes of 14 species of Parmelia s.s. are reported. Almost all species show a barcode gap. Overall, intraspecific divergence values were lower than the threshold previously established for Parmeliaceae. However, the mean and range were elevated by deep barcode divergences in three species, indicating the likely occurrence of overlooked species‐level lineages. Here, we provide a DNA barcode reference library with well‐identified specimens sampled worldwide and sequences from most of the type material to enable easy and fast accurate sample identification and to assist in uncovering overlooked species in Parmelia s.s. Further, our results confirm the efficiency of the ITS region in the identification of species of Parmelia s.s. © 2015 The Linnean Society of London, Botanical Journal of the Linnean Society, 2016, 180 , 21–29. 相似文献
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报道了猫耳衣属的2个亚洲新记录种——好望角猫耳衣(Leptogium capense)和拟糠猫耳衣(L.pseudofurfuraceum)。与其他国家和地区的文献报道相比,好望角猫耳衣在中国具有更高的海拔分布,拟糠猫耳衣具有较薄的地衣体。 相似文献
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为明确地图衣属部分物种的分类地位,该研究以中国西南地区为研究区域,采用表型特征(形态学、解剖学和化学特征)和基因型特征(ITS序列)相结合的方法,对地图衣属(Rhizocarpon Ramond ex DC.)地衣物种进行分类学研究,初步探讨该属物种表型与基因型的对应关系.通过研究,我们发现了该属1新种——四川地图衣(Rhizocarpon sichuanense Y.M.Zhang,L.Hu & W.C.Wang,sp.nov.),该新种与相近种黑灰地图衣(Rhizocarpon cinereonigrum Vain.)和中华地图衣(Rhizocarpon sinense Zahlbr.)的主要区别:地衣体裂片较为分散,表面呈龟裂或者亚鳞叶状;下地衣体黑色,明显;孢子较大,为[(27~)32~42.5]μm×[12.5~17.5(~20)]μm,TLC检测含有巴巴酸.在系统发育中,该新种与黑红地图衣[Rhizocarpon badioatrum(Flörke ex Spreng.)Th.Fr.]在同一个进化分枝上,但黑红地图衣的地衣体裂片连续不分散,孢子明显较小[(23~36)μmx(13~16)µm],地衣体中含有地弗地衣酸或不含化学物质.通过系统发育分析,结果表明:(1)该新种——四川地图衣属于褐地衣体亚属中的Badioatrum group;(2)仅依据解剖学特征(孢子的大小和分隔类型)对地图衣属部分类群的划分存在不合理性,还需结合化学特征进行综合分析.该文提供了新种的分类学描述以及形态、解剖和化学的高分辨率图片.利用新种的ITS序列构建的系统发育树,为建立更趋自然合理的分类系统提供基础数据.此外,该文对世界范围内褐地衣体亚属中子囊孢子为棕色1隔的类群(Badioatrum group)编写了详细的物种检索表,为该类群的进一步研究提供了资料支持. 相似文献
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Bachan Lal Bhellum;Rani Magotra; 《Nordic Journal of Botany》2024,2024(2):e04093
Psammogeton hirsutus Bhellum and Magotra (Apiaceae), a novel species collected from the lowlands of Jammu and Kashmir, north-west India's subtropical region, is described and illustrated. Psammogeton hirsutus resembles one its close relatives P. canescens and P. shivalikense; however, it differs significantly in terms of the plant being hirsute, sheaths of leafbases, ciliate peduncle degree of pubescence, bracts and bracteoles, and fruit shape. We provide data on phenology, distribution map, a comparison of species with comparable morphologies, and a key to closely related species. 相似文献
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通过对采自云南省景东彝族自治县无量山地衣标本的研究,发现了橙衣属的一个中国新记录Caloplaca indica(三室类型孢子)和果衣属的一个中国新记录种Ramboldia haematites。R. haematites在福建和广西同样存在。该文详细描述了其形态学、解剖学和化学方面的特征,并且提供了显微结构照片。本研究丰富了云南、福建和广西地衣的物种多样性,为橙衣属和果衣属地衣分类学研究提供基础数据和可靠资料。所用标本存放在山东师范大学植物标本室(SDNU)。 相似文献
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DNA extraction and PCR amplification method suitable for fresh, herbarium-stored, lichenized, and other fungi 总被引:6,自引:0,他引:6
Oscar F. Cubero Ana Crespo Jamshid Fatehi Paul D. Bridge 《Plant Systematics and Evolution》1999,216(3-4):243-249
This paper presents a DNA extraction method suitable for fresh, herbarium-stored, lichenized and other fungal specimens. The method is fast and reliable, comparatively inexpensive and is suitable for obtaining PCR amplification quality DNA from large numbers of samples in a short time. The method has been tested with over 300 samples ofAscochyta, Phyllosticta, Ramalina, Parmelia andPhysconia. Amplifiable fungal DNA was extracted from pure cultures, leaf lesions, whole thalli and dissected only-fungal sections of lichenized fungi. In addition, the method has proved suitable for use with herbarium specimens of both lichenized and non-lichenized fungi, stored as dried pure cultures or dried infected plant material. 相似文献
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