Host genus | Fungal species | Symptoms and notes |
Persicaria | Microbotryum bistortarum | Smut of inflorescences |
Puccinia polygoni-vivipari | Rust of leaves | |
Phalaris | Claviceps purpurea | The ergot fungus, infecting inflorescences and forming sclerotia from modified seeds. Highly toxic |
Puccinia sessilis | Rust of leaves. Aecia are found on Arum | |
Tilletia menieri | Causes smut of ovaries | |
Phleum | Claviceps purpurea | See under Phalaris above |
Phragmites | Hadrotrichum phragmitis | Causes leaf spots of Phragmites australis |
Puccinia phragmitis | Rust of leaves. Aecia are found on Rumex | |
Utrechtiana roumeguerei | Causes leaf spots of Phragmites australis | |
Picea | Gemmamyces piceae | Causes death of young buds, sometimes leading to growth abnormalities |
Rhizosphaera kalkhoffii | Causes needle cast, but not a major pathogen | |
Pinus | Coleosporium tussilaginis | Rust on needles of Pinus spp., mostly P. sylvestris in GB&I. Uredinia and telia on Tussilago |
Cucurbidothis pityophila | Causes canker of bark | |
Diplodia sapinea | Mostly saprotrophic on shoots, leaves and cones, but can be pathogenic when the host is stressed | |
Lophodermella sulcigena | Needle cast and dieback | |
Plantago | Golovinomyces sordidus | Powdery mildew of leaves |
Populus | Leucostoma niveum | Causes canker and dieback of twigs and small branches |
Linospora ceuthocarpa | Causes large leaf spots | |
Melampsora laricis-tremulae | Poplar leaf rust. See also Melampsora populnea agg. | |
Valsa sordida | Causes canker and dieback of branches | |
Prunus | Leucostoma cinctum | Causes canker and dieback of twigs and small branches |
Leucostoma persoonii | As for Leucostoma cinctum above | |
Polystigma rubrum | Bright red leaf spots on Prunus spinosa, cultivated plum and hybrids thereof. | |
Pyrola | Chrysomyxa pyrolata | Rust of leaves of Pyrola spp. |