中国蜈蚣衣科地衣多样性及区系研究

该研究通过对山西管涔山和五鹿山等区域采集的蜈蚣衣科地衣300余份标本的鉴定分析，结合已有报道，从物种多样性、空间分布特点、生境类型及区系成分等方面对蜈蚣衣科地衣进行研究，以明确中国蜈蚣衣科地衣物种组成及区系特点。结果表明：(1)中国蜈蚣衣科地衣共有7属197种54变种，饼干衣属(Rinodina)占绝对优势，约占蜈蚣衣科地衣总种数的30.5%。(2)中国蜈蚣衣科地衣多分布于新疆，蜈蚣衣属(Physcia)是该科中分布最广泛的属，但其中有26.4%的物种仅分布于单一地区。(3)蜈蚣衣科地衣生境类型多样，有树生、石生、藓丛生、土生和多生境5种，以多生境地衣为主(48.5%)。(4)中国蜈蚣衣科地衣的地理成分复杂，同时伴随多种区系成分，但以温带性质显著(占43.1%),东亚特色明显。(5)仅分布于中国的蜈蚣衣科地衣共4属10种，且主要分布于中国东北、西北和西南地区。

Species Diversity and Floristic Elements of the Lichen Family Physciaceae in China

In this study, more than 300 samples of the lichen family Physciaceae collected from Guancen Mountain and Wulu Mountain in Shanxi were identified and analyzed. Lichens of Physciaceae were studied in terms of species diversity, spatial distribution characteristics, habitat types and floristic composition in conjunction with existing reports. The species composition and floristic characteristics of the lichen family Physciaceae in China were clarified. The results showed that: (1) there were 197 species and 54 varieties, belonging to 7 genera. Rinodina was the dominant genus, accounting for about 30.5% of total species. (2) Lichens of Physciaceae are mostly distributed in Xinjiang, and Physcia is the most widely distributed genus in the family. However, 26.4% of these species are distributed in only a single area. (3) The lichen habitat types of Physciaceae are diverse, including tree, stone, moss, native and multi habitat, and the multi habitat lichen is the main one (48.5%). (4) The geographical composition of the lichen family Physciaceae in China is complex. There are a variety of floristic elements, but the temperate nature (43.1%) is the most prominent, with obvious East Asian characteristics. (5) There are four genera and ten species of the lichen Family Physciaceae distributed only in China, and they are mainly distributed in northeast, northwest and southwest China.