Cronartium
Cronartium is a genus of rust fungi in the family Cronartiaceae.
They are heteroecious rusts with two alternating hosts, typically a pine and a flowering plant, and up to five spore stages. Many of the species are plant diseases of major economic importance, causing significant damage.
Cronartium appalachianum: Pinus virginiana, Santalaceae. Eastern North America.
Cronartium arizonicum: Pinus ponderosa and related pines, Scrophulariaceae. Western North America.
Cronartium comandrae: Pinus subgenus Pinus, Santalaceae. North America.
Cronartium comptoniae: Pinus subgenus Pinus, Myricaceae. North America.
Cronartium conigenum: Pinus subgenus Pinus, Fagaceae. Southwestern North America.
Cronartium flaccidum: Pinus subgenus Pinus, several families. Europe, Asia.
Cronartium occidentale: Pinus subgenus Ducampopinus, Saxifragaceae. Southwestern North America.
Cronartium orientale: Pinus subgenus Pinus Quercus. Japan.
Cronartium quercuum: Pinus subgenus Pinus, Fagaceae. North America, Asia.
Cronartium ribicola: Pinus subgenus Strobus, Grossulariaceae. Europe, Asia.
