Yolk yellow disc laurel
| Yolk yellow disc laurel | ||||||||||||
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Discina leucoxantha in G. Bresadola's Iconographia Mycologica (Plate 1197). |
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| Scientific name | ||||||||||||
| Gyromitra leucoxantha | ||||||||||||
| ( Bres. ) Harmaja |
The yolk yellow disc laurel ( Gyromitra leucoxantha , syn. Discina leucoxantha ) is a type of mushroom from the family of poison laurel relatives . The fungus that grows in mountain coniferous forests forms cup-like to flatly spreading fruiting bodies .
features
Macroscopic features
The disc-shaped to plate-shaped fruit bodies in the youth stage spread out flat when ripe and then lie on the ground, with the edges slightly turned upwards. The surface is initially bare and smooth, later it appears wrinkled and delicately fluffy. The fruiting bodies reach a width of 2 to 6 cm and a height of 1 to 2 cm. The uneven, wrinkled and wavy, bent fruit layer with an irregularly bulged and wavy edge is colored ocher to yolk yellow. The outside appears whitish to cream-colored and merges into the short stem . This is only 0.2–0.3 cm long, thick and sunk into the ground. The surface of the stem is sometimes pitted and somewhat grooved in older specimens. The waxy meat is whitish in color, tasty and has no specific smell. On average it appears to have two layers.
Microscopic features
The fruit layer ( hymenium ) is on the surface of the fruit body. The spores are elliptical, have two-pointed appendages at the ends and measure 28–32.5 × 14–16 µm without them. They are transparent ( hyaline ) and have a large drop of oil inside. Its surface is finely dotted and ornamented with a weak net . There are eight spores in each of the 280 × 17 µm tubes ( asci ). The paraphyses with granular contents are cylindrical and slightly thickened at the tip.
Species delimitation
The yolk-yellow disc laurel can be differentiated microscopically from possibly similar species by its spores.
Ecology and phenology
The yolk yellow disc laurel occurs as a saprobiont in coniferous forests under larches, preferably in the high mountains. The species is rare in the flat and hilly regions.
The fruiting bodies are formed in the spring shortly after the snow has melted in the mountains from April to May.
meaning
According to the Swiss mushroom expert Ernst Rahm, the yolk yellow disc Lorchel is a tasty edible mushroom . Further information on the edibility of the rare species is not available.
Individual evidence
literature
- ^ A b Edmund Michael , Bruno Hennig, Hanns Kreisel : Handbook for mushroom friends. Volume 2. Non-leaf mushrooms (basidiomycetes without leaves, ascomycetes) . 3. Edition. Fischer, Jena 1986, ISBN 3-437-30347-3 , p. 376, 428 .
- ↑ a b c Josef Breitenbach, Fred Kränzlin (ed.): Pilze der Schweiz. Contribution to knowledge of the fungal flora in Switzerland. Volume 1: Ascomycetes (Ascomycetes). Mykologia, Luzern 1981, ISBN 3-85604-010-2 , p. 62.
- ↑ Red List of Endangered Fungus Species for Saxony 1999, PDF document, p. 19, accessed on September 25, 2013 ( Memento of the original from September 27, 2013 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ Report of the Naturforschenden Gesellschaft Mecklenburg 2005, PDF document, p. 11, accessed on September 25, 2013 ( Memento of the original from September 27, 2013 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
