Rust Fungi on Medicinal Plants in Guizhou Province with Descriptions of Three New Species.

During the research on rust fungi in medicinal plants of Guizhou Province, China, a total of 9 rust fungal species were introduced, including 3 new species (, , and ), as well as 6 known species (, , , , ). Notably, and were discovered for the first time in China, while , , and were first documented in Guizhou Province. Morphological observation and molecular phylogenetic analyses of these species with similar taxa were compared to confirm their taxonomic identities, and taxonomic descriptions, illustrations and host species of those rust fungi on medicinal plant are provided.