Russula subsect. Heterophyllinae
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The green edible pigeon ( Russula heterophylla ) is the type species of the subsection Heterophyllinae |
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| Russula subsect. Heterophyllinae | ||||||||||||
| Melzer & Zvara |
Russula subsect. Heterophyllinae is a subsection of the genus Russula , which is within the section Heterophyllae .
features
The subsection contains medium to large species with robust fruiting bodies. The hat is greenish, brownish, flesh red, but never purely reddish or yellowish in color. The spore powder is white to whitish cream in color, the taste is mild. The meat does not discolor with age or with injuries. FeSO 4 leads to a reddish discoloration and with aniline the meat turns yellow. The stem is usually white and often has brown spots.
The cap skin has filamentous hyphae end cells that can be slightly thickened near the base. The pileocystids in the cap skin are usually only sparse and are usually only weakly or indistinctly stained with sulfovanillin.
Within the subsection, the flesh-red edible deaf ( R. vesca ) and green edible deaf ( R. heterophylla ) are characterized by multi-branched needle cystids. Needle cystids are a typical form of the Heterophyllae cystidia that can be found in different parts of the fruiting body or mycelium. They are characterized by colorless to slightly yellowish, thick walls and tapering ends. Their base is often blistered. The needle cystids of the two edible pigeons have a slightly swollen base and are also known as "crins" (horsehair). The cystids occur more frequently in the middle of the hat and on very young fruiting bodies.
- The type species is Russula heterophylla , the green edible blubber .
Systematics
The subsection Heterophyllinae is in Bon within the section Heterophyllae and corresponds to the section Heterophyllinae by Romagnesi and the subsection Heterophyllae at Sarnari . Only Singer divides the taxon into two subsections, the Lividinae with the two edible pigeons and the Modestinae subsection, in which the weasel pigeon stands. Both subsections are within the Rigidae section , which corresponds to Bon's Heterophyllae section . Molecular biological and morphological studies show that the subsection Heterophyllinae within the section Heterophyllae is at the base of the family tree.
Within the subsection, the two edible pigeons are characterized by their multi-branched needle cystids in their mycorrhiza . The needle cystidia in the cap skin and the molecular data also show the close relationship between the two species.
Most authors (Romagnesi, Sarnari, Bon) also place the weasel deaf in the sub-section Heterophyllae . According to the mycorrhiza analysis and molecular data, it is questionable whether it belongs in this subsection. But only Singer puts the species in its own Modestinae subsection . In any case, the weasel-deafling shows many characteristics which are also typical for the subsection Griseinae . Although its flesh turns orange-pink with iron sulfate, as is typical for R. vesca and R. heterophylla , the rather cream-colored, non-white spore powder and the lack of needle cystidia in the cap skin clearly distinguish it from the two edible pigeons and refer to the Subsection Griseinae . The weasel pigeon thus anatomically occupies a position between the two subsections.
| German species name | Scientific species name | author |
|---|---|---|
| Flesh red edible pigeon | Russula vesca | Fr. (1836) |
| Green edible pigeon | Russula heterophylla | (Fr.) Fr. (1838) |
| Weasel-deaf | Russula mustelina | Fr. (1838) |
Individual evidence
- ↑ Marcel Bon (ed.): Parey's book of mushrooms . Franckh-Kosmos Verlag, Stuttgart 2005, ISBN 3-440-09970-9 , pp. 72 .
- ↑ 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 )
- ^ Beenken, Ludwig: The genus Russula: Investigations into their systematics based on ectomycorrhizae . Dissertation, LMU Munich: Faculty of Biology (2004). PDF for download
