Boeremia exigua

Boeremia exigua is the type species of the fungus genus, Boeremia, in the Didymellaceae family.^[1] It was first described as Phoma exigua by John Baptiste Henri Joseph Desmazières in 1849,^[2][3] and transferred to the genus, Boeremia, by M.M. Aveskamp, J. de Gruyter, J.H.C. Woudenberg, G.J.M. Verkley and P.W. Crous in 2010.^[2][1]

Boeremia exigua
Phoma exigua spores
Scientific classification
Kingdom:	Fungi
Division:	Ascomycota
Class:	Dothideomycetes
Order:	Pleosporales
Family:	Didymellaceae
Genus:	Boeremia
Species:	B. exigua
Binomial name
Boeremia exigua (Desm.) Aveskamp, Gruyter & Verkley (2010)
Synonyms
Phoma exigua Sacc. (1879) Phomopsis perexigua (Sacc.) Traverso (1906) Phyllosticta sambuci Desm. (1847)

Desmazières describes the species as occurring on stems and dried leaves, with two varieties: one of which is found on the stems and leaves of a Polygonum species, and the other on the stems and leaves of Ranunculus.^[3]

It causes wet weather blight in cotton and it can be treated with systemic copper.

Varieties

• Phoma exigua var. exigua
• Phoma exigua var. foveata
• Phoma exigua var. heteromorpha
• Phoma exigua var. linicola
• Phoma exigua var. solanicola