Taxonomic Investigations on the Discomycetous Genus Lachnellula Karst.

The fungus genus Lachnellula Karsten comprises a small number of species of the inoperculate Discomycetes belonging to the order Helotiales. Though some species of the genus have been well known for many years in Europe and North America as a cause of Larch canker, the taxonomy of this natural group is still in an unsatisfactory condition. The literature on the subject has become much more confused by the variety of names and inadequate descriptions of the species. This fact alone has led to the erection of many uncalled-for new species even by careful workers.