Pyrenomyxa

{{Short description|Genus of fungi}}

{{Taxobox

| image =

| image_caption =

| regnum = Fungi

| divisio = Ascomycota

| classis = Ascomycetes

| ordo = Xylariales

| familia = Xylariaceae

| genus = Pyrenomyxa

| genus_authority = Morgan

| type_species = Pyrenomyxa invocans

| type_species_authority = Morgan

| subdivision_ranks = Species

| subdivision =

}}

Pyrenomyxa is a genus of fungi in the family Xylariaceae. The genus is synonymous with Pulveria Malloch & Rogerson.{{cite journal |last=Lumbsch TH, Huhndorf SM. |date=December 2007 |title=Outline of Ascomycota – 2007 |journal=Myconet |volume=13 |pages=1–58 |url=http://archive.fieldmuseum.org/myconet/outline.asp |publisher=The Field Museum, Department of Botany |location=Chicago, USA }}