Trametes trogii
Systematics:- Department: Basidiomycota (Basidiomycetes)
- Subdivision: Agaricomycotina (Agaricomycetes)
- Class: Agaricomycetes (Agaricomycetes)
- Subclass: Incertae sedis (undefined)
- Order: Polyporales
- Family: Polyporaceae (Polyporous)
- Genus: Trametes (Trametes)
- Species: Trametes trogii (Trametes trogii)
Synonyms :
- Cerrena trogii
- Coriolopsis trogii
- Trametella trogii
Description
Fruiting bodies of the trametus Trog are annual, in the form of widely accreted, rounded or oval sessile caps, located singly, in rows (sometimes even growing together laterally) or in tiled groups, often on a common base; 1-6 cm wide, 2-15 cm long and 1-3 cm thick. There are also prostrate-bent and resupinate forms. In young fruit bodies, the edge is rounded, in old ones it is sharp, sometimes wavy. The upper surface is densely pubescent; on the actively growing edge velvety or with soft hairs, in the rest of the hard, bristly; with indistinct concentric relief and tonal zones; from dull grayish, grayish-yellowish to brownish-yellow, orange-brownish and even quite bright rusty-orange; it turns brownish with age.
The hymenophore is tubular, with an uneven surface, in young fruiting bodies from white to grayish-cream, with age it acquires a yellowish, brownish or brownish-pinkish tint. The tubes are single-layer, less often two-layer, thin-walled, up to 10 mm long. The pores are not quite regular in shape, at first more or less rounded with a smooth edge, later angular with a serrated edge, large (1-3 pores per mm), which is a good distinguishing feature of this species.
Spore powder is white. Spores 5.6-11 x 2.5-4 µm, from elongated-ellipsoid to almost cylindrical, sometimes slightly curved, thin-walled, non-amyloid, hyaline, smooth.
The fabric is whitish to pale ocher; two-layer, cork in the upper part and cork-fibrous in the lower, adjacent to the tubes; when dry it becomes hard, woody. It has a mild taste and pleasant smell (in some cases, sour).
Ecology and distribution
Trametes Troga grows in forests on stumps, dry and large valez, as well as on dying deciduous trees, most often on willows, poplar and aspen, less often on birch, ash, beech, walnut and mulberry, and, as an exception, on conifers (pine ). On the same sustratum, they can appear annually for several years. Causes rapidly developing white rot. The period of active growth from late summer to late autumn. Old fruiting bodies are well preserved and can be seen throughout the year. This is a rather thermophilic species, so it prefers dry, protected from the wind and well-warmed by the sun places. Distributed in the northern temperate zone, found in Africa and South America. In Europe it is quite rare, it is included in the Red Lists of Austria, the Netherlands, Germany, France, Latvia, Lithuania, Finland, Sweden and Norway.
Similar species
Hard-haired trametes (Trametes hirsuta) is distinguished by smaller pores (3-4 per mm).
Trametes suaveolens, which also prefer willows, aspen and poplar, are distinguished by low pubescence, usually velvety and lighter caps (white or off-white), white fabric and strong aniseed aroma.
Outwardly similar Gallic Coriolopsis (Coriolopsis gallica, formerly Gallic trametes) is distinguished by a tomentose pubescence of the cap, a darker hymenophore and a brown or gray-brown tissue.
Representatives of the genus Antrodia with large pores are distinguished by the absence of such pronounced pubescence and by white tissue.
Edibility
Trametes Trog is inedible due to its tough consistency.
Photo: Marina.