Russula subsect. Decolorantinae
| Russula subsect. Decolorantinae | ||||||||||||
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The orange-red gray-stalked blubber ( Russula decolorans ) is the type species of the subsection Decolorantinae |
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| Scientific name | ||||||||||||
| Russula subsect. Decolorantinae | ||||||||||||
| R. Maire |
Russula subsect. Decolorantinae is a subsection of the genus Russula , which is within the Polychroma section. The taxon was defined by R. Maire and is also used by Romagnesi in the rank of a section, which is with him within the subgenus Coccinula . The type species is Russula decolorans , the orange-red gray-stalked deafling .
features
The representatives of the Decolorantinae are medium-sized to large, strong and firm-fleshed deafblings. The stem has a more or less firm bark and is not, or only slightly, indentable with age. The hat skin is shiny. With iron sulfate , the meat becomes more or less reddish in color, but never greenish, the aniline reaction is negative. The meat tastes mild, only in the lamellae of young fruiting bodies can it sometimes taste slightly pungent. The fruiting bodies blacken or gray with age or when injured and never smell of crabs or fish. The spore powder is dark ocher or yellow.
The basidia are elongated or stocky and measure up to 60 (70) × 10-15 µm. The elongated cystids are numerous and grow up to 100 µm long (even longer with age). They stand out clearly. The spores are prickly or warty and usually have a well-defined, amyloid hilarity . In the hat skin one finds more or less many Pileocystiden , which can mostly be stained with sulfovanillin or sulfobenzaldehyde , but sometimes only weakly. Acid-fast incrustations or primordial hyphae , however, do not occur. The pigment is located in vacuoles and never occurs extracellularly.
| German species name | Scientific species name | author |
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| Orange-red gray-stalked deafbling | Russula decolorans | ( Fr. ) Fr. (1838) |
| Russula seperina | Russula seperina | Dupain (1913) |
Systematics
Singer places all species of greyish pelvis in his sub-section Decolorantes , as he considers the discoloration of the meat to be an important taxonomic characteristic. Romagnesi, on the other hand, believes that hat skin structures are much more important as an indication of the phylogenetic relationship. Therefore, he separates the orange-red greyish-stalked blubber and the Mediterranean species Russula seperina from the other greyish-stalked blubber and places them in the sub-section Decolorantinae . On the other hand, he puts the yellow and wine-red gray-stalked deafblings in the subsection Integroidinae , since the two species have primordial hyphae, but no pileocystids. Bon follows Romagnesi and also includes Romagnesi's Decolorantinae subsection in his system.
Individual evidence
- ^ Monographic Key to European Russulas (1988). (PDF; 1.4 MB) In: The Russulales Website w3.uwyo.edu. Archived from the original on July 28, 2010 ; Retrieved July 6, 2011 (English, translation by M. Bon's Russula key).
- ↑ Russulas. (PDF DOC) Micologia.biz Web de micología Europea, p. 133 , accessed on July 6, 2011 (Spanish).
- ^ Alfred Einhellinger: The genus Russula in Bavaria . In: Bibliotheca Mycologica . 3. Edition. tape 112 . Berlin / Stuttgart 1994, ISBN 3-443-59056-X , p. 64 .