Lectotypification and characterization of the natural phenotype of Fusarium bactridioides

Specimens of Fusarium bactridioides deposited in the US National Fungus Collections and New York Botanical Garden were examined and a lectotype is selected based on naturally infected galls of Cronartium conigenum collected in Arizona. This species was previously only described from culture, and its natural phenotype is presented and illustrated here. Historical experiments involving the attempted use of F. bactridioides as a biocontrol of pine blister rusts in Oregon and New Hampshire are reviewed, but the unpublished records of the ultimate fate of these experiments could not be located.