New taxa of Lachnum (Ascomycetes, Helotiales) on bamboo and a key to the bambusicolous species of the genus
Two new varieties of Lachnum, L. novoguineënse var. yunnanicum and L. sclerotii var. microascum , are described. Lachnum albidum var. albidum, L. albidum var. americanum, L. difficillimum, and L. globulare are newly combined. The known bambusicolous taxa of Lachnum and some related genera are keyed out. The taxonomic positions of Erinella albocarpa, E. tomentella, E. hyalopilosa, and E. setulosa are discussed.