Keizer's Fungus guide

Assuming the copyright on the photo's and texts is respected and permission for using of both photo's and texts is asked for, I open this guide, depicting and describing macrofungi, which are not included in Fungi on Trees, An Arborist's Field Guide (2011), but need to be identified because of their possible detrimental effects on trees.

Spongipellis spumeus

Annual brackets or consoles 5-20 cm wide, whitish to cream, then grayish, surface felty, flesh white, duplex layered, upper layer spongy, lower layer fibrous and tough, tubes long, white, with white round pores 2-4 pro mm, spores white.

Mostly fruiting from wounds and cavities on/in the trunk of old impaired descideous trees, such as Aesculus, Ulmus and Populus. Causing a white rot decay of the central wood column.

Sometimes mistaken for Aurantioporus fissilis.

Abortiporus biennis.

Multiple annual fan- to rosette-shaped brackets in stemmed tufts, 8-20 cm in diameter, with thin, undulate margin, upper surface finely velvety-felty, whitish or ochraceous to reddish brownish, tubes white, 2-5 mm long, pores 1-3 pro mm, irregularly reticulate to labyrinthine, whitish, staining pink-reddish-brown on bruising. Stem usually sunk into the soil, 4-7 X 2-3 cm, flesh soft to hard, white, smell unpleasant, spores white.

On stumps or buried wood and at the base of trunks of Populus, Ulmus, Quercus and Fagus, sometimes fruiting from roots at some distance of the tree. The species is especially making Quercus rubra, Ulmus and Populus unstable.

Sometimes mistaken for (young) Meripilus giganteus.

Occasionally together with the anamorph Ceriomyces terrestris in the form of white bulbs with red guttation drops.

Oxyporus populinus.

Perrenial brackets a console, triangular in cross-section, 3-10 cm wide, surface whitish to pale brown, velvethy, often covered with green algae or mosses, tubes short, 1-2 mm long, white or cream, in thin multiple layers, pores round, 5-7 pro mm, flesh whitish, tough, spores white.

Necrotrophic parasite of broadleaved trees, mainly of Populus, causing simultaneous white rot of the rootplate and the onset of the buttresses.

Sometimes hard to find, if fruiting in between buttresses or hidden in the grass covering the base of the trunk.

Can be mistaken for Trametes gibbosa or other macrofungi with whitish perennial brackets covered by green algae or mosses. Potentially dangerous if overlooked or false identified.

Pholiota populnea (P. destruens).

Annual, often growing in clusters, cap convex to expanded with a hump, 6-20 cm in diameter, pale creamy brown to greyish yellow, with large woolly white scales and woolly velar remnants at the margin, gills grey-whitish to dingy brown, stem 6-10 x 2-3 cm, smooth, whitish to pale creamy brown at the apex, with floccolose white scales below the membranous ring and a swollen base. Flesh whitish, taste bitter, smell unpleasant. Spores pale to rusty brown.

Necrotrophic parasitic, on living and dead wood of poplar, often on wounds or saw cuts.

Poplars, like Populus nigra "Italica", which have been topped or heavily pollarded, on the surface of horizontal or vertical saw cuts can easily be infected with spores, after which the mycelium invades the wood column from above or aside and decomposes the wood at high speed, i.e. up to half a metre downwards a year. If the sleeping branch buds high up on the tree are activated, in a few years thick and heavy outgoing branches can be high up on the trunk, which have no more then a few centimetres of bark and living wood to be connected to and held by and easily can be torn off by strong winds and fall because of this.

Hypsizygus ulmarius. (Lyophyllum ulmarius).

Annual, sometimes tufted, cap hemisphaerical, then convex, 8-15 cm in diameter, smooth, matt, cream to brown with grey tinge, with reflexed margin, gills white to creamy yellow, stem 8-15 x 1-3 cm, striate groved, pale cream, flesh tough, white, smell somewhat sour, spores white to pale cream.

Necrotrophic parasite, often high up on (wounds of) trunks of living or recently dead elms alongside roads or on stumps in parks.

Causing a wet type of white (or soft ?) rot colouring the wood brownish, making the tree (extremely) vulnerable for (parts of) the crown breaking off at great height.

A whole heap of impressive specimens & photography Sir.

What/which cameras do you tend to use Gerrit ?

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A whole heap of impressive specimens & photography Sir.

 

What/which cameras do you tend to use Gerrit ?

 

 

 

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clean thread gone!

Just suprised you didn't beat me to it

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What/which cameras do you tend to use ?

David,

In the "old days" (slides), Olympus 10n, 1 and 2 with Tamron macro zoom 90 mm 1:2.8 F32, in the digital era Canon EOS 450D with Tamron SP Di macro zoom 90 mm 1:2.8 F32 and Canon EW-78D EFS/IS tele/macro zoom 80-200 mm 1:3.5-5.6 F 32.