''Nectria ramulariae'' is a plant pathogenic
fungus
A fungus (: fungi , , , or ; or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and mold (fungus), molds, as well as the more familiar mushrooms. These organisms are classified as one ...
.
References
Fungal plant pathogens and diseases
ramulariae
Fungi described in 1818
Fungus species
{{fungus-plant-disease-stub