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Laetiporus sulphureus is a species of bracket fungus (fungi that grow on trees) found in Europe and North America. Its common names are sulphur polypore, sulphur shelf, and chicken-of-the-woods. Its fruit bodies grow as striking golden-yellow shelf-like structures on tree trunks and branches. Old fruitbodies fade to pale beige or pale grey.
Aspen trunk rot is a fungal disease that causes stem decay heart rot of living aspen trees. The pathogen that causes this disease is the fungus Phellinus tremulae . Most of the symptoms of this disease are internal, with the only external signs of a diseased aspen being fruiting bodies called conks.
Laminated root rot also known as yellow ring rot is caused by the fungal pathogen Phellinus weirii. Laminated root rot is one of the most damaging root disease amongst conifers in northwestern America and true firs , Douglas fir , Mountain hemlock , and Western hemlock are highly susceptible to infection with P. weirii .
Pine-pine gall rust has characteristically brown to yellow-orange sori visible on large globular galls on pines. Gall formation on trunks occurs over 2–4 years and is stimulated by the pathogen, which causes cells to grow and divide quickly at the site of initial infection. [8]
Inonotus dryadeus (syn. Pseudoinonotus dryadeus), commonly known as oak bracket, warted oak polypore, weeping polypore or weeping conk, is an inedible species of fungus belonging to the genus Inonotus, which consists of bracket fungi with fibrous flesh. Most often found growing at the base of oak trees, it causes white rot and decay of the ...
Yellow to red-brown necrosis in a five-year-old ash tree. Trees now believed to have been infected with this pathogen were reported dying in large numbers in Poland in 1992. [14] By the mid 1990s, the fungus had also been identified in Lithuania, Latvia and Estonia. [15]
The continuous formation of lesions around the tree eventually girdles it, resulting in canopy death. In Europe, N. coccinea is the primary fungus causing the infection. [3] Infection in European trees occurs in the same manner as it does in North American trees. Though the disease still appears in Europe, it is less serious today than it once ...
The fungus was originally described by Jean Bulliard in 1788 as Boletus betulinus. [1] It was transferred to the genus Piptoporus by Petter Karsten in 1881. [2] Molecular phylogenetic studies suggested that the species was more closely related to Fomitopsis than to Piptoporus, [3] [4] and the fungus was reclassified to Fomitopsis in 2016.