Studies On The Diversity Of Trichiales In Jilin Province

To further explore the distribution of slime molds in Jilin Province,the author collected of 26 locations in Changchun City,Jilin City,Baishan City,Baicheng City and Yanbian Korean Autonomous Prefecture in Jilin Province.A total of 266 field specimens of Trichiales were collected.And a total of 58 species of Trichiales were collected belonging to 7 genes of 2 families in 1 orders.Among them,there is one new record in China was Trichia decipiens var.olivacea,and 4 new records in Jilin Province were Trichia verrucosa,Trichia flavicoma,Arcyria glauca,Arcyria minuta.The results showed that,the dominant genera was Arcyria followed by Trichia,Perchaena,Hemitrichia and Metatrichia.And Dianemaceae species less.The investigation found that Trichiales showed a gradual increase from west to east,with little distribution in the northwest,and more distribution in the southeast,especially in the Changbai Mountain area,with the highest collection of species and the highest species richness.In the southeast,it comprised 13 species of Arcyria,9 species of Trichia,3 species of Hemitrichia,1 specie of Metatrichia,and 1 specie of Oligonema,the total of 27 species.The Trichiale in the northwestern part of Jilin Province,represented by Baicheng and Songyuan,were extremely scarce.In the central part of Jilin Province,represented by Jilin and Changchun,there were 11 species of Arcyria,4 species of Trichia,3 species of Hemitrichia,and 1 specie of Metatrichia,the total of 19 species.In the eastern part of Jilin Province,represented by Yanbian,there were 12 species of Arcyria,8 species of Trichia,3 species of Hemitrichia,and 2 species of Metatrichia,the total of 25 species.This was consistent with the fact that the terrain of Jilin Province was inclined from southeast to northwest,showed obvious characteristics of high southeast and low northwest.It was found that the topography is proportional to the richness of slime molds.Dense species of myxomycetes,there are many species of resources to be explored,its species diversity research task is still arduous.