中文摘要：

本实验对新疆天山南部的蓝藻型地衣异极衣科的1个中国新记录属以及2个中国新记录种进行了分类学研究。采用形态解剖、化学及生态等传统分类方法,利用显色反应法（CT）、薄层层析法（TLC）等生物化学方法,鉴定采样区异极衣科地衣的1个中国新记录属——半被果衣属（Lempholemma Krb）以及2个中国新记录种——叶状枝半被果衣[Lempholemma cladodes（Tuck.）Zahlbr.]和幼芽状盘衣属（Lichinella Nyl.）的黑色幼芽状盘衣[Lichinella nigritella（Lettau）P.Moreno＆Egea]。半被果衣属的主要特点是子囊果为半被果或密果,共生藻为念珠藻;黑色幼芽状盘衣的鉴别特征为地衣体多叶状,顶端常具小裂片,上表面具小、球状裂芽。本研究对半被果衣属以及叶状枝半被果衣和黑色幼芽状盘衣进行了详细的描述,并提供了相关彩色图片,为新疆地衣的进一步研究提供了实验依据,并为中国异极衣科地衣的研究奠定了基础。

英文摘要：

Speclmens for this study were collected from Southern Tianshan Mt. in Xinjiang Province,China. In the laboratory, standard methods of morphological, anatomical and chemotaxonomical analyses were used. The chemical analyses were carried out using spot tests （TC） ,thin layer chromatography （TLC）. As a result, we found one lichen genus Lempholemma Korb with one species,Lempholemma cladodes （Tuck.） Zahlbr and another species,Lichinella nigritella （Lettau） P. Moreno ＆ Egea in the Lichen genus Li- chinella Nyl are recognized in the lichen family Lichinaceae in Xinjiang Province and are described as new to China. Lempholemma is characterized by its hemiangiocarpous or pycnoascocarps ascoma and Nostoc pho- tobionts. L. nigritella is characterized by its polyphyllous thalli, small lobules at the lobe tips, minute glo- bose isidia at upper surface. Detailed taxonomic descriptions with comments and photos are provided. This study provides not only valuable information for the application of research on Xinjiang lichens, but also scientific research materials for the diversity of lichen in China.