Valsa ambiens

{{Short description|Species of fungus}}

{{Speciesbox

| image = 2012-05-26 Valsa ambiens (Pers.) Fr 223504.jpg

| image_caption = Valsa ambiens on apple branch

| genus = Valsa

| species = ambiens

| authority = (Pers.) Fr., (1849)

| synonyms =

Cryptodiaporthe populina (Fuckel) Petr., (1921)

Cryptosporella populina (Fuckel) Sacc., (1879)

Cytospora ambiens (Nitschke) Sacc., (1879)

Cytospora germanica Sacc., (1884)

Cytospora microstoma Sacc., (1884)

Cytospora populina Rabenh.

Cytospora rhodophila Sacc., (1884)

Sphaeria ambiens Pers., (1801)

Sphaeria diatrypa Fr., (1823)

Sphaeria microstoma Pers., (1801)

Sphaeria tetraspora sensu Currey p.p.; fide Cannon, Hawksworth & Sherwood-Pike (1985)

Valsa ambiens Nitschke, (1867)

Valsa ambiens subsp. ambiens (Pers.) Fr., (1849)

Valsa ambiens var. betulae Plowr.

Valsa ambiens var. carpini Cooke

Valsa ambiens var. coryli Sacc.

Valsa ambiens var. crataegi Cooke

Valsa ambiens var. mali Sacc.

Valsa ambiens var. populi Plowr.

Valsa ambiens var. pyri Cooke

Valsa betulina Nitschke, (1870)

Valsa diatrypa (Fr.) Fr., (1849)

Valsa diatrypa Nitschke, (1849)

Valsa microstoma (Pers.) Fr., (1849)

Valsa microstoma Nitschke, (1849)

Valsa opulina Sacc. & Speg., (1889)

Valsa pauperata Cooke & Ellis, (1881)

Valsa populina Fuckel, (1871)

Valsa rhodophila Berk. & Broome, (1859)

Valsa subseriata Cooke, (1885)

Valsella diatrypa (Fr.) Z. Urb., (1957)

}}

Valsa ambiens is a plant pathogen infecting elms.