Phragmidium rosae-pimpinellifoliae
Encyclopedia
Phragmidium rosae-pimpinellifoliae is a species of fungus
Fungus
A fungus is a member of a large group of eukaryotic organisms that includes microorganisms such as yeasts and molds , as well as the more familiar mushrooms. These organisms are classified as a kingdom, Fungi, which is separate from plants, animals, and bacteria...

 in the Phragmidiaceae
Phragmidiaceae
The Phragmidiaceae are a family of rust fungi in the order Pucciniales. The family contains 14 genera and 164 species.-Genera:*Arthuriomyces*Frommeella*Gerwasia*Gymnoconia*Hamaspora*Joerstadia*Kuehneola*Mainsia...

 family. A plant pathogen, it causes a rust on the stem, leaves, petiole
Petiole
Petiole may refer to:*Petiole , the stalk of a leaf, attaching the blade to the stem*Petiole , the stem formed by a restricted abdominal segment that connects the thorax with the gaster in the suborder Apocrita...

s and fruits of burnet rose and related hybrids. The fungus is found in Europe and North America.
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