The Hypocrea schweinitzii complex and Trichodermasect. Longibrachiatum.

Author(s): G.J. SAMUELS, O. PETRINI, K. KUHLS, E. LIECKFELDT & C.P. KUBICEK:
Details: 54pp., (A4 format), paperback, 1998
Price: € 35,-

Hypocrea schweinitzii and related sexual and apparently strictly asexual Hypocrea (Trichoderma) species form a monophyletic lineage known as the H. schweinitzii complex. The anamorphs correspond to Trichoderma sects. Longibrachiatum and Saturnisporum. The H. schweinitzii complex includes six holomorphic (Hypocrea + Trichoderma) and four anamorphic (Trichoderma) species. The following new species are proposed: Hypocrea andinensis, H. orientalis, H. novaezelandiae, H. pseudokoningii and Trichoderma konilangbra. Trichoderma parceramosum is found to be a later synonym of T. ghanense. The anamorph of H. pseudokoningii is T. pseudokoningii; the anamorph of H. schweinitzii is T. citrinoviride; the anamorph of H. jecorina is T. reesei. Hypocrea orientalis and T. longibrachiatum are genetically very close to each other, differing in 1-5 bp in the ITS region of the rDNA gene; they differ from each other in phenotypic characters. Trichoderma longibrachiatum is considered to be a clonal derivative of H. orientalis or a similar Hypocrea species. No teleomorphs are known for the following species: T. ghanense, T. konilanghra and T. saturnisporum. Keys to the species through their anamorphs and teleomorphs, and descriptions and illustrations are provided.