Gloiodon
The palmetto fungi ( Gloiodon ) is a fungal genus in the family ear spoon Stache Ling relatives. The living of wood species have resupinate to effuso reflexes or hat-like, brownish fruiting body with a prickly hymenophore. Microscopically, they are characterized by their Gloeozystiden and amyloid, ornamented spores.
The type species of the genus is the Ragged palmetto fungus ( Gloiodon strigosus ).
- 4.1 Literature
- 4.2 Notes and references
Features
Macroscopic characteristics
The one-year fruiting bodies are often spread in layers on the substrate ( resupinat ), the edges may be bent upward ( effuso - reflex ). But you can also form a sessile hat that is spread then curved to flat and dry, felted or striegelige surface has. This is more or less brown, colored, almost black when ripe. The hymenophore consists of rounded, conical, up to 10 mm long spines that are agile to dull brown or gray. The meat ( Trama ) is sparse, rust- brown in color and quite soft to hard. The spore powder is whitish.
Microscopic characteristics
The spores are nearly globose to broadly elliptical and have a distinct Apiculus. You are strongly amyloid, finely ornamented and measure 4-6 × 3.5-5 microns. The club-shaped, cylindrical or constricted basidia are 15-25 microns long and have 4 sterigmata and at the base of a buckle. The Hyphensystem is monomitisch and consists of generative hyphae which bear the septa buckles. But often the Hyphensystem seems to be dimitisch, as there are some darkly pigmented, sclerotic hyphae are branched sparingly and only occasionally wear buckles. Therefore, you are strongly reminiscent Skeletthyphen. The spines contain gloeoplere hyphae which terminate in Gloeozystiden.
Ecology and distribution
The fungus lives saprobiontisch on hardwood, often of poplar, but alders and willows. On dead wood, it causes a white rot. Worldwide, there are three types. In Europe, only the Ragged palmetto fungus occurs, which is particularly common in Northern and Eastern Europe and also in North America and Asia ( Siberia) occurs. However, the species is quite rare everywhere. In Germany a few finds from the Bavarian Alps are known.
System
The genus Gloiodon 1879 defined by the Finnish mycologist P. Karsten to delineate species with sessile pileaten or effuso reflexes, leathery to corky fruit bodies of the genus Hydnum. As type species he chose strigosum Hydnum, a species that is not rare in Finland.
Gloiodon is undoubtedly closely related to the genus Auriscalpium. Both genera belong to the species with hydnoiden hymenophore, gloeopleren hyphae and amyloid, ornamented basidiospores. However, while the representatives of Gloiodon sessile fruiting bodies have stalked fruiting bodies are characteristic of Auriscalpium. M. Geesteranus placed the two genera in the family of Auriscalpiaceae ( ear spoon Stache Ling relatives). Later Donk presented in addition the genus Lentinellus in the family. It is indeed to lamellar mushrooms, but they are micromorphologically strikingly similar.
Younger molecular studies show that the family of Auriscalpiaceae to russuloiden lineage ( clade ) is one and the genus Gloiodon is phylogenetically closely related to the genera Auriscalpium and Dentipratulum, while the genus Lentinellus forms a side branch. Also, the cup coral ( Artomyces ) belong to this lineage and are also provided by some mycologists in the Auriscalpiaceae family.
In the Indexfungorum database the genus Gloiodon still the family of Bondarzewiaceae ( Bergporlingsverwandten ) becomes ordered to but no close relationship exists. The Fringed Resupinatstacheling ( Steccherinum fimbriatum ) and the ocher Reddish Resupinatstacheling ( Steccherinum ochraceum ) were formerly placed in the genus, but are not closely related, but belong to the order Polyporales.