Russula subsect. Exalbicantinae
| Russula subsect. Exalbicantinae | ||||||||||||
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The fading deafblings ( Russula exalbicans ) is the type species of the subsection Exalbicantinae |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Russula subsect. Exalbicantinae | ||||||||||||
| Melzer & Zvára |
Russula subsect. Exalbicantinae is a subsection from the genus Russula , which is within the Firmae section.
features
In the representatives of this subsection, pink or light red colors dominate, the middle is sometimes darker or the edge is more or less washed out greenish. There are no intense blood red, purple or violet colors. The stem is partly tinged with pink and often turns gray when wet. The species are often more delicate and fragile than is typical for the Firmae section . The spore powder is cream-colored to pale ocher. The mushrooms taste moderately hot. Sometimes almost mild in the hat and in older fruiting bodies.
The cap skin contains pileocystides , which stain well in sulfovanillin (benzaldehyde). There are no encrusted cells or hyphae. The two species form a double mycorrhiza with milkling species from the Tricholomoidei section , with the deafness portion being limited to Hartig's network . The deaflings enter into a symbiosis with birch trees with their dairy partner .
- The type species is Russula exalbicans , the fading blubber .
Systematics
Romagnesis subsection Exalbicans corresponds to the subsection of Bon , with the difference that it is within the Firmae section for Bon and in the Atropurpurinae section for Romagnesi . At Sarnari the taxon only has the rank of a series that is within its sub-section Sardoninae . The taxon is completely absent from Singer. The Fading Bluebird is in the Sardoninae subsection , while the Dainty Birch Bluebird is in the Sanguinae subsection . With molecular biological methods, the taxon cannot be clearly assigned to a higher-ranking taxon. However, it is close to both the Firmae section , as defined by Bon, and the Atropurpurinae section , as defined by Romagnesi. It is doubtful whether the weak-spotted blubber is more closely related to the other two species, in Romagnesi it is in the subsection Persicinae .
| German species name | Scientific species name | author |
|---|---|---|
| Fading blubber | Russula exalbicans | Melzer & Zvára (1927) |
| Delicate birch blubber | Russula gracillima | Jul. Schäff. (1931) |
| Faint blotchy blotch | Russula persicina | Krombh. (1845) |
Sources and References
Individual evidence
- ↑ Monographic key of the russules of Europe ( Memento of July 28, 2010 in the Internet Archive ) under The Russulales Website ( Memento of the original of May 11, 2005 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.
- ^ German Russula key on the website of the Latvian Mycological Society ( Memento from May 13, 2011 in the Internet Archive )
- ↑ Blood, bile and tears. Blades Part 6 - Sharp Cream Spurs. Der Tintling 96, issue 5/2015, pp. 19–30
- ^ Beenken, Ludwig: The genus Russula: Investigations into their systematics based on ectomycorrhizae . Dissertation, LMU Munich: Faculty of Biology (2004). PDF for download
