Trichoderma asperellum

{{Short description|Species of fungus}}

{{Speciesbox

|image=

|genus=Trichoderma

|species=asperellum

|authority=Samuels, Lieckf. & Nirenberg 1999

}}

Trichoderma asperellum Samuels, Lieckf & Nirenberg Samuels, G.J.; Lieckfeldt, E.; Nirenberg, H.I. (1999) Trichoderma asperellum, a new species with warted conidia, and redescription of T. viride. Sydowia 51(1):71–88 is a species of fungus in the family Hypocreaceae.{{cite web|title=Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist.|url=http://www.catalogueoflife.org/annual-checklist/2011/search/all/key/trichoderma+asperellum/match/1|author=Roskov Y.|author2= Kunze T.|author3=Orrell T.|author4=Abucay L.|author5=Paglinawan L.|author6=Culham A.|author7=Bailly N.|author8=Kirk P.|author9=Bourgoin T.|author10=Baillargeon G.|author11=Decock W.|author12=De Wever A.|editor=Didžiulis V.|publisher=Species 2000: Reading, UK.|year=2011|accessdate=21 July 2018}} It can be distinguished from T. viride by molecular and phenotypic characteristics. The most important molecular characteristics are divergent ITS-1 and 28S sequences and RFLP's of the endochitinase gene.{{citation needed|date=June 2025}} Main phenotypic characters are conidial ornamentation and arrangement and branching of the conidiophores.{{citation needed|date=June 2025}}