Russula sect. Compactae
| Russula sect. Compactae | ||||||||||||
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The thick-leaved black deaf ( Russula nigricans ) is the type of sub-section Compactae |
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| Scientific name | ||||||||||||
| Russula sect. Compactae | ||||||||||||
| Fr. |
Russula sect. Compactae or Nigricantinae (after Romagnesi) is a section from the genus Russula , which is within the subgenus Compactae .
features
The representatives of this section usually have large, compact fruiting bodies with a short stubby stem. The hat skin is dull and smooth. The edge of the hat is not rubbed and rolled up for a long time, the hat skin is fused with the hat meat ( trama ) so that it is difficult to remove. Dull whitish, brownish or greyish colors are characteristic of the hat; in old age the fruiting body can be almost completely black. The slats are numerous, different lengths fin tablets intermingled and never forked. The spore powder is white. In the case of injuries, the meat often turns reddish or gray or black. The taste is mild to slightly hot, but rarely really hot.
The hat skin ( Pileipellis ) is made up of slender hyphae cells . The hyphae cells of the epicuticle often contain a brown vacuole pigment , while pileocystids are absent or difficult to find. The cystids in the lamellae and the basidia are often noticeably narrow or slender. The spores are only faintly ornamented with fine blacks. The hillock is not amyloid .
- The type species of the section is Russula nigricans , the thick-leaved black-blotch .
Systematics
The section Compactae or Nigricantes , as it is called by Romagnesi , is summarized by Bon, Romagnesi and Sarnari with the sister section Lactarioides ( Plorantes ) in the subgenus Compactae . In both sections the fruiting bodies have a number of similar macroscopic features. Both have a compact stature, numerous lamellae, a long rolled-up brim and firm meat, to name just a few. Microscopically, however, the sections differ considerably in some cases. The species from the Compactae section have spores with a low, weakly pronounced spore ornament and the hilly spot is not amyloid. The representatives of the Lactarioides section, on the other hand, have strong, amyloid ornamentation and a clearly amyloid hilar stain. The pigmentation is also different.
The molecular biological relationship analysis shows that the two sections are far less closely related than was assumed for a long time.
The Schncklingstäubling Russula camarophylla, which Bon places in the Compactae section, shows no close relationship to the other representatives of the section. Sarnari therefore places it together with Russula archaea in the Archaeinae section , a step that is also supported by the molecular data.
| German species name | Scientific species name | author |
|---|---|---|
| Dense-leaved black blotch | Russula densifolia | ( Bull. ) Fr. (1989) |
| Thick-leaved black blotch | Russula nigricans | Secr. ex Gillet (1838) |
| Coal-Täubling | Russula anthracina | Romagn. (1962) |
| Black tarnishing blubber | Russula albonigra | ( Krombh. ) Fr. (1874) |
| Russula subnigricans | Russula subnigricans | ( Hongo ) (1955) |
| Smoky brown black blotch | Russula adusta | ( Pers. ) Fr. (1838) |
| Sharp-leaved black blotch | Russula acrifolia | Romagn. (1997) |
| Russula densissima * | Russula densissima * | Romagn. (1980) |
| Snail puff | Russula camarophylla | Romagn. (1967) |
| The species rank of species marked with an asterisk (*) is not generally recognized. | ||
literature
- Ludwig Beenken: The genus Russula: Investigations into their systematics based on ectomycorrhizae. (PDF, 27 MB) Dissertation, LMU Munich : Faculty of Biology. 2004, accessed January 21, 2011 .
Individual evidence
- ↑ Marcel Bon (ed.): Parey's book of mushrooms . Franckh-Kosmos Verlag, Stuttgart 2005, ISBN 3-440-09970-9 , p. 54 .
- ^ Monographic Key to European Russulas. (PDF; 1.4 MB) The Russulales Website, 1988, p. 7 , archived from the original on July 28, 2010 ; Retrieved January 24, 2011 (English translation of M. Bon's Russula key :).
- ↑ Steven L. Miller and Terry M. McClean: Molecular phylogeny of the genus Russula in Europe with a comparison of modern infrageneric classifications. (PDF, 120 KB) (No longer available online.) Formerly in the original ; accessed on January 23, 2011 . ( Page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.
