Cryptosporella suffusa

Cryptosporella suffusa is a species of fungus that causes canker in alder trees.

Cryptosporella suffusa
Scientific classification
Kingdom: Fungi
Division: Ascomycota
Class: Sordariomycetes
Order: Diaporthales
Family: Gnomoniaceae
Genus: Cryptosporella
Species:
C. suffusa
Binomial name
Cryptosporella suffusa
(Fr.) L.C. Mejía & Castl.[1]
Synonyms[1]
  • Cryptospora suffusa (Fr.) Tul. & C. Tul.
  • Engizostoma subtectum (Fr.) Kuntze
  • Ophiovalsa suffusa (Fr.) Petr.
  • Sphaeria suffusa Fr.
  • Valsa rhabdospora De Not.
  • Winterella suffusa (Fr.) Kuntze

In 2003 in Alaska, many individual thinleaf alder trees (Alnus incana subsp. tenuifolia) were observed to be dying back, with hundreds or thousands of acres of riparian woodland being affected. Individual trunks and whole clumps were involved, dying within two weeks of the onset of the disease. The cause was found to be the fungus Cryptosporella suffusa, which may also have been responsible for a similar mass mortality of alders in the area in the 1950s. The affected trees seemed to be those suffering from stress, perhaps brought on by drought or resulting from defoliating insects such as the woolly alder sawfly.[2]

References
  1. "Cryptosporella suffusa". Mycobank. Retrieved 12 November 2019.
  2. Forest Health Conditions in Alaska—2003. DIANE Publishing. p. 41. ISBN 978-1-4289-6595-9.
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