Rhizocalyx

{{Short description|Genus of fungi}}

{{Automatic_taxobox

| image =

| image_caption =

| taxon = Rhizocalyx

| authority = Petr.

| type_species = Rhizocalyx abietis

| type_species_authority =

| subdivision_ranks = Species

| subdivisions =

}}

Rhizocalyx is a genus of fungi in the family Helotiaceae.{{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 }} This is a monotypic genus, containing the single species Rhizocalyx abietis.