Bleeding coniferous layer mushroom
| Bleeding coniferous layer mushroom | ||||||||||||
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Bleeding coniferous layer mushroom ( Stereum sanguinolentum ) |
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| Stereum sanguineism | ||||||||||||
| ( Alb . & Pig. ) Fr. |
The inedible bleeding coniferous layer mushroom ( Stereum sanguinolentum ) is a type of mushroom from the family of layer mushroom relatives (Stereaceae). The fruiting bodies appear all year round on coniferous wood.
features
Macroscopic features
The thin, fleshy, stereoid fruiting bodies cover barked and bare trunks and branches as crusty, leathery coatings , often several dm 2 in size, or form protruding, often wavy, bent hats on vertical branches or trunks. The brim of the hat is 0.5–1.5 cm wide, horizontally from the wood. The fruit bodies can be removed from the substrate relatively easily. They are elastic, leathery or tough and later often brittle and hard. The surface is finely felted and more or less zoned. It is pale brownish to grayish brown in color and can become greenish due to algae. The wavy or notched edge is whitish or at least lighter in color.
The fruit layer ( hymenophore ) is smooth or somewhat bumpy-wrinkled. It is pale greyish to violet-greyish or gray-beige in color and tinged more or less purple. Fresh and moist fruit bodies redden vividly when rubbed, so that the finger turns red. In the intact fungus, the red pigment is contained in the skeletal hyphae that pervade the flesh and the fruit layer. If these are injured or destroyed, the red dye is released. In cross-section, under the tomentum , the hairy, felty surface, you can see the yellow-red cortex that can be seen with a magnifying glass. This is a thin, usually darker layer of hyphae stuck together. The smell and taste of the mushroom are inconspicuous, the spore powder is white and amyloid .
Microscopic features
The elliptical to almost cylindrical spores are 8–11 µm long and 2.5–3.5 µm wide. They are smooth and translucent. In the fruit layer you can find pseudocystidia in addition to the basidia . These are the hyphae ends of the skeletal hyphae, which contain the red dye that is so typical of this species.
Species delimitation
The bleeding coniferous layer mushroom can possibly be confused with other reddening Stereum species such as the wrinkled layer mushroom ( Stereum rugosum ) and the oak layer mushroom ( Stereum gausapatum ). Both species are usually a bit thicker and grow on hardwood.
Ecology and diffusion
The fungus is very common all year round and is often found en masse on dead coniferous wood. The fruiting bodies are particularly common on the cut surface of the stems. The fruiting bodies are usually annual, but often overwinter and fructify as early as January – February. The fungus causes red streaking in the affected wood . This is a striped, reddish discoloration of the trunk wood. The fungus is widespread and extremely common all over the northern hemisphere. The coexistence of the bleeding layer fungus with the parasitic pine seedling ( Tremella encephala ) is also remarkable . The solid interior of this mushroom, which belongs to the group of tremors, is formed from transformed tissue of its host. Because of this white, solid "core", the mushroom is also known as the alabaster seedling.
meaning
The bleeding coniferous layer mushroom is not an edible mushroom.
swell
- Paul Kirk: Stereum sanguinolentum. In: Species Fungorum. Retrieved September 23, 2013 .
- Stereum sanguineism. In: MycoBank.org. International Mycological Association, accessed September 23, 2013 .
Individual evidence
- ↑ a b c d Ewald Gerhardt: Röhrlinge, Porlinge, Bauchpilze, culverts and others . In: mushrooms. Spectrum of nature, BLV intensive guide . tape 2 . BLV, Munich / Vienna / Zurich 1985, ISBN 3-405-12965-6 , p. 111 .
- ^ A b Hans E. Laux: The new cosmos mushroom atlas . 1st edition. Kosmos, Stuttgart 2002, ISBN 3-440-07229-0 .
- ↑ a b c Karin Monday: Bleeding coniferous layer mushroom Stereum sanguinolentum In the virtual mushroom book. In: [1] . Retrieved September 23, 2013 .
