Physoderma maydis

{{Short description|Species of fungus}}

{{Speciesbox

| image = Physoderma_maydis.jpg

| image_caption = Maize leaf showing infection by Physoderma maydis

| taxon = Physoderma maydis

| authority = (Miyabe) Miyabe, 1909

| synonyms_ref =

| synonyms =

}}

Physoderma maydis is a species of fungus in the family Physodermataceae. It is a pathogen of the maize, causing a disease known as brown spot of maize or brown spot of corn.{{cite journal | last = Robertson | first = A. E. | year = 2015 | title = Physoderma brown spot and stalk rot | journal = Integrated Crop Management News | pages = 679 | url = http://lib.dr.iastate.edu/cropnews/679/}} This species was first labeled in 1910 in India, then again a year later in Illinois.{{Cite journal|last=Robertson|first=Alison E.|last2=Jesse|first2=Laura|last3=Munkvold|first3=Gary|last4=Rojas|first4=Erika Salaau|last5=Mueller|first5=Daren S.|date=January 2015|title=Physoderma Brown Spot and Stalk Rot of Corn Caused by Physoderma maydis in Iowa|url=https://apsjournals.apsnet.org/doi/10.1094/PHP-BR-15-0003|journal=Plant Health Progress|language=en|volume=16|issue=2|pages=90–92|doi=10.1094/PHP-BR-15-0003|issn=1535-1025|url-access=subscription}}