J. anastomosans J. chaverriae J. dacryoidea J. perlucida Jamesiella is a genus of fungi in the family Gomphillaceae.

[2] It was circumscribed by Robert Lücking, Emmanuël Sérusiaux and Antonín Vězda in 2005.

The genus name honours Peter Wilfred James, an English botanist who worked at the Natural History Museum, London.

[3] The type species of the genus, Jamesiella anastomosans, is now classified in the genus Gyalideopsis.

As of July 2024[update], Species Fungorum (in the Catalogue of Life) accepts four species of Jamesiella:[2]