Xerocomellus chrysenteron
Common Rotfußröhrling ( Xerocomellus chrysenteron )
The Common or True Rotfußröhrling ( Xerocomellus chrysenteron, syn. Boletus chrysenteron and Xerocomus chrysenteron ), sometimes called Rotfüßchen, is a species of fungus in the family Dickröhrlingsverwandten. Until a few years he was in genus Filzröhrlinge ( Xerocomus ), but this was reduced to the relationship among the goats lip due to molecular biological knowledge.
- 5.1 Literature
Features
Macroscopic characteristics
It may come in many variations. The hat is dull and matted, its surface often felderig - cracked. It reaches a diameter of 3-7 cm. The color ranges from yellow to brownish olivbräunlich, but can take gray, yellow - blue or reddish tones. The surface discolored usually reddish at the crack and feeding sites. The tubes are yellowish and olivgelblich in old age. You are bulged up slightly decurrent on stem and discolour when printing dirty green to blue. The stem is slender and occupied on yellowish ground especially in the lower section with reddish flakes. Sometimes he does not have red parts. The flesh is yellowish and on average slightly blauend. With age, it softens quickly. The smell is insignificant; the taste sour. The spore powder is olive brown.
Microscopic characteristics
The elliptical- spindled spores reach a size of 10-13 (-15 ) × 5-6 micrometers.
Artabgrenzung
The Commons Rotfußröhrling similar to the closely related species Stark Blue Ender Rotfußröhrling (X. cisalpinus ), downy Rotfußröhrling (X. porosporus ), Oak Filzröhrling (X. communis) and Frosted Rotfußröhrling (X. pruinatus ), which are also edible. The False Rotfußröhrling has the spore a germ pore, which is why they act like truncated at one end. Similarly, the goats lip ( Xerocomus subtomentosus ), but having a less pronounced red stem. In addition, the fungus does not usually turns blue and consists of a more luminous flesh. Robust specimens are sometimes confused with the Schönfuß Boletus (Boletus calopus ), but having a yellow handle network and bitter tastes.
Occurrence
The common Rotfußröhrling is to be found in deciduous and coniferous forest and no special soil requirements. It is a common fungus that can be found from July to November.
Importance
Are mostly only younger specimens of interest to the mushroom pickers, as older are often attacked maggoty and also of molds. But even young specimens are often widespread of the poisonous gold mold ( Hypomyces chrysospermus, Anamorphic: Apiocrea chrysosperma ) infested. This can be seen initially by a patchy, often appearing in annular zones whitish discoloration of the otherwise yellow tube mouths. Then the gold mildew also affects other parts of the fruit body, recognizable by the white discoloration of the affected areas. In the final stage the fungus covers a golden yellow mold. The infested Rotfußröhrlinge be wet quickly and are already unsuitable for consumption for this reason alone. Young, healthy specimens in contrast, are characterized by a slightly sour intense mushroom flavor.