Ocher-gray giant vaginal striped vagina
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Ocher-gray giant vaginal striped ( Amanita lividopallescens ) |
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| ( Secr. Ex. Boud. ) Kühner & Romagn. |
The ocher Gray Amanita Ceciliae or short ocher Gray Streifling ( Amanita lividopallescens ) is a species of fungus from the family of Wulstlingsverwandten (Amanitaceae).
features
Macroscopic features
The hat is initially egg-shaped, later spread out and has a broad hump in the middle. The cap is colored ocher yellow to hazelnut or olive yellow to olive brown. Sometimes there are also gray tones; seldom is it tinted entirely gray. Its diameter varies in width from 4 to 20 cm. The hat skin is smooth and shiny. On it there are often remains of velum in the form of large shreds or warty-conical scales. They are whitish, later ocher in color. The edge of the hat is grooved inwards up to 2 cm.
The lamellas are more or less distant and are mixed with lamellae. They are white to cream in color, plump and have a soft consistency. In fresh fruit bodies, the edges are lashed gray-brown; in old age they are lined with light yellow. They are bulbous and free on the stem .
The stem is white to cream in color, slender and sometimes slightly curved. It becomes 9 to 15 cm long and 1 to 2.5 cm thick. Its shape is cylindrical or tapered at the tip. The surface has a distinct ocher-brownish napping , which becomes finer towards the top. Towards the base it becomes coarser, where it later loosens ring-like and sparse.
The Volva is membranous and runs quite far up the stem with up to 6 cm. It consists of two layers. The outer part is cream-colored on the outside and brownish, rust-stained to gray or olive-gray on the inside. The spongy flesh is white, brownish under the hat skin. It has no particular smell or taste.
The spore powder is white.
Microscopic features
The spores are very variable in shape, broadly ellipsoidal to almost rounded and measure 9 to 13 (14.2) by 8 to 12.5 µm. They are inamyloid , colorless, and their surface is smooth. The basidia are slender clubbed and each have four spores. The cystids on the lamellar cutting edge (cheilocystids) are spherical, broad, club-shaped or pear-shaped. They measure 25 to 35 by 15 to 25 µm. There are no basidia on the blade edge; it is therefore sterile. There are no cystids on the lamellar surface (pleurocystids).
The hyphae of the Volva are narrow, cylindrical and intertwined. The end cells are seldom extended to a club. There are no spherocysts.
Species delimitation
The ocher-gray giant vaginal strips can be confused with similarly colored vaginal strips. Especially fruit bodies with clearly gray colored hats can look similar to the gray vaginate ( A. vaginata ). This usually forms smaller fruiting bodies and has particularly rounded spores that are around 2 µm shorter. The red-brown streifling ( A. fulva ) has a dark red-brown hat. The bicoloured vaginal striated ( A. umbrinolutea ) has a clearly paler contrasting hat edge. The gray-skinned vaginal striated ( A. submembranacea ) has a gray inside of the volva. The volva also has numerous spherocysts.
ecology
The ocher-gray giant sheath streifling can be found in light, heat-bound beech and oak forests. It also grows on the edges of forests and grassy roadsides in forests and parks, where it can be found on dry grassland or juniper heaths rich in bases . The fungus inhabits alkaline to neutral, dry, heavy, loamy or silty soils over limestone and marl . The populated soils are rich in bases, but poor in nutrients (especially nitrogen ) and shallow or highly compacted.
The fungus forms an ecto mycorrhiza mainly with common beech and oak . The fruiting bodies appear from spring to autumn, but more often not until summer.
distribution
The ocher-gray giant sheath streifling is widespread meridional to temperate . It can be found in southern North America (Mexico, California), Europe and North Africa (Algeria, Morocco). In Europe, the area extends from Great Britain, the Benelux countries and France in the west to Russia in the east and south to Spain, Italy, Slovenia, Croatia and Romania and north to southern Norway and Finland, where the species is only found sporadically.
meaning
Like all vaginal strips, the mushroom is edible, but not tasty. In addition, it should be spared because of its rare occurrence in Germany.
supporting documents
- German Josef Krieglsteiner (Ed.), Andreas Gminder : Die Großpilze Baden-Württemberg . Volume 4: Mushrooms. Blattpilze II. Ulmer, Stuttgart 2003, ISBN 3-8001-3281-8 .
- Amanita lividopallescens (PDF; 275 kB). The Tintling , 44 (3), 2005.
