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This is the only spore-bearing phase. The fungus overwinters as either rhizomorphs or vegetative mycelium. [28] Infected wood is weakened through decay in roots and tree base after destruction of the vascular cambium and underlying wood. [22] Trees become infected by A. mellea when rhizomorphs growing through the soil encounter uninfected roots ...
Fungal diseases; Annosus root disease Heterobasidion annosum. Spiniger meineckellum [anamorph] Armillaria root disease Armillaria solidipes. Armillaria spp. Black stain root disease Leptographium wageneri var. pseudotsugae: Blue stain fungus Grosmannia clavigera: Bleeding sap rot Stereum sanguinolentum: Brown crumbly rot Fomitopsis pinicola ...
The disease tends to occur in patches due to a primarily short range spread mechanism. [3] Infected or decayed roots break close to the root collar forming “root balls.” [ 1 ] Laminated root rot is frequently detected during ground survey when canopy openings and standing dead and fallen trees are observed. [ 4 ]
Pittosporum tenuifolium is a small evergreen tree endemic to New Zealand – growing up to 10 m (33 ft) – commonly known as kōhūhū and black matipo, and by other Māori names kohukohu and tawhiwhi. Its small, very dark, reddish-purple flowers generally go unnoticed, and are scented only at night. The Latin tenuifolium means "slender-leaved ...
The plant pathogenic fungus Leucostoma kunzei (formerly Valsa kunzei) is the causal agent of Leucostoma canker (also known as Cytospora canker or spruce canker), a disease of spruce trees found in the Northern Hemisphere, predominantly on Norway spruce (Picea abies) and Colorado blue spruce (Picea pungens).
The fungus forms perennial fruiting bodies that rise as woody-hard, hoof or disc-shaped brackets from the bark of the infested living tree or dead log. The tree species is often willow but it may be commonly found on birch and alder and other broad leafed trees. The top is covered with a dark, often cracked crust, a stem is present only in its ...
Torreya taxifolia is an evergreen tree that may reach heights of 18 metres (59 ft) with an 80 centimetres (31 in) diameter trunk, although it typically grew to 9–12 metres (30–39 ft) tall and 30–50 centimetres (12–20 in) in diameter, and most stands today are composed of immature trees of less than 3 metres (9.8 ft) tall.
Tremella mesenterica (common names include yellow brain, golden jelly fungus, yellow trembler, and witches' butter [2]) is a common jelly fungus in the family Tremellaceae of the Agaricomycotina. The gelatinous, orange-yellow fruit body of the fungus, which can grow up to 7.5 cm (3 in) diameter, has a convoluted or lobed surface that is greasy ...
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