title: The Longibrachiatum Clade of Trichoderma: a revision with new species.
abstract: The Longibrachiatum Clade of Trichoderma is revised. Eight new species are described (T. aethiopicum, T. capillare, T. flagellatum, T. gillesii, T. gracile, T. pinnatum, T. saturnisporopsis, T. solani). The twenty-one species known to belong to the Longibrachiatum Clade are included in a synoptic key. Trichoderma parareesei and T. effusum are redescribed based on new collections or additional observations. Hypocrea teleomorphs are reported for T. gillesii and T. pinnatum. Previously described species are annotated.
authors.affiliation: United States Department of Agriculture, Agricultural Research Service, Systematic Mycology & Microbiology Laboratory, B-010a, 10300 Baltimore Ave, Beltsville, MD 20705, USA.
authors.forename: Gary J
authors.initials: GJ
authors.lastname: Samuels
authors.forename: Adnan
authors.initials: A
authors.lastname: Ismaiel
authors.forename: Temesgen B
authors.initials: TB
authors.lastname: Mulaw
authors.forename: George
authors.initials: G
authors.lastname: Szakacs
authors.forename: Irina S
authors.initials: IS
authors.lastname: Druzhinina
authors.forename: Christian P
authors.initials: CP
authors.lastname: Kubicek
authors.forename: Walter M
authors.initials: WM
authors.lastname: Jaklitsch