中国异极衣科地衣二新记录种

Two Lichinaceae species new to China

关键词:  地衣型真菌, 异极衣科, 蓝藻型地衣, 蜂窝衣属, 小极衣属, 石灰岩

Key words:  lichenized fungi, Lichinaceae, cyanolichens, Heppia, Lichinella, limestone

摘要:

该文综合运用形态学、解剖学和化学等方法对山东大型地衣进行分类研究,发现了两个中国新记录种,即德氏蜂窝衣(Heppia despreauxii)和多孢小极衣(Lichinella myriospora)。德氏蜂窝衣隶属于蜂窝衣属(Heppia),生于光线充足且裸露的土壤上,主要识别特征为下皮层缺失、子实层IKI+蓝色; 多孢小极衣隶属于小极衣属(Lichinella),生于干燥的钙质岩石上,主要识别特征为其子实层IKI+酒红色变为蓝色。该文对这两个中国新记录种进行了详细描述,与近似物种进行了对比讨论,并且提供了其地衣体、子囊盘及其解剖特征图片。同时,该文还补充报道了白棋盘蜂窝衣(Heppia solorinoides)的有性繁殖结构特征和数据。蜂窝衣属和小极衣属均为山东新记录属。以上研究结果为中国异极衣科(Lichinaceae)地衣研究提供基础资料。

Abstract:

Morphological, anatomical and chemical characters were used in this research. Two Lichinaceae species new to China, Heppia despreauxii and Lichinella myriospora, were discovered during a taxonomical study of the macrolichens from Shandong Province. Heppia despreauxii, belonging to the genus Heppia, grows on well-lit bare soil in open situations, and is characterized by its absence of lower cortex and hymenium IKI+ blue; Lichinella myriospora, belonging to the genus Lichinella, occurs on calcareous rock in arid sites, and is characterized by its hymenium IKI+ wine-red turning blue. Descriptions in detail, comments with similar species, and morphological photographs of these two species are provided. The materials of Heppia solorinoides, reported from China by other lichenologists, lack apothecia, and the morphological and anatomical characters of its apothecia are described according to the materials collected and examined by us. Both genera Heppia and Lichinella are reported for the first time from Shandong Province. All these results provide basic data information for the taxonomy of the family Lichinaceae.