贵州省野生苦苣苔科物种多样性与地理分布.

In this study, the species diversity and geographical distribution pattern of wild Gesneriaceae in Guizhou Province were studied based on the establishment of a list and geographical distribution database of wild Gesneriaceae in Guizhou Province. The species composition, endemism, horizontal distribution, vertical distribution and similarity were analyzed, through the literature and a field investigation, and the hotspots of Gesneriaceae in Guizhou were determined by a complementary algorithm. The results are as follows:(1)There are 153 species(including subspecies)of Gesneriaceae in Guizhou Province, belonging to 2 tribes, 8 subtribes, and 28 genera. These plants are distributed among 75 county-level administrative districts. There are 128 species endemic to China and 45 endemic to Guizhou, and the vertical distribution is the most abundant at altitudes section of 900-1 300 m.(2)The calculation of the provincial similarity coefficient showed that Guizhou and Guangxi had the highest similarity. Finally, 10 hot spots were selected, representing 75% of the Gesneriaceae plants.(3)Guizhou Province is a typical karst plateau mountainous area that is rich in species of Gesneriaceae, especially Oreocharis, Primulina, Petrocodon and Paraboea, which have high species diversity and regional specificity. This study can provide a theoretical reference for the conservation and sustainable utilization of Gesneriaceae plant resources in Guizhou Province. [ABSTRACT FROM AUTHOR]