1
Observations
1 year ago
Last Observed
Russula exalbicans, also known as the Bleached Brittlegill, is a species of mushroom belonging to the genus Russula. It is characterised by its cap, which can be 5 to 10 cm across and is convex, later flattening or becoming depressed. The cap's appearance is variable, ranging from greenish-white to having a rose-red or dull wine-coloured margin.
| Season | ||||||||||||
|
||||||||||||
|
Distribution
Fairly common
Habitat
In wet woodlands prefering sandy or calcareous soils
Associates
Betula
Cap
| Colour | |
|---|---|
| Shape | Convex, Flattened |
| Surface | Smooth |
| Width | 5 - 10 cm |
| Peeling | 9/20 |
Gills
Firm and fleshy
| Colour | |
|---|---|
| Spacing | crowded |
| Edge | irregular |
Flesh
| Colour | |
|---|---|
| Odour | Weak but fruity |
| Taste | Moderately acrid |
Stem
Firm, greying with age
| Colour | |
|---|---|
| Texture | Smooth |
| Shape | Cylindric |
Macrochemicals
Guaiac slow and feeble
| FeSO4 |
|---|
Spores
Warts around 0.5μm high, numerous ridges and connectives forming an incomplete reticulum
| Colour | |
|---|---|
| Shape | Ellipsoid, Oblong |
| Ornamentation | Reticulate, Warty |
| Size | 7-9.5 x 5.5-6.7 μm |
Microscopic Features
Dermatocystidia frequent, variable in shape, 0-1 septate
| Dermatocystidia | Club-shaped (Clavate), Cylindrical, Fusiform |
|---|
Confirmed
Unconfirmed
Classification
- ↳ Phylum: Basidiomycota
- ↳ Subphylum: Agaricomycotina
- ↳ Class: Agaricomycetes
- ↳ Order: Russulales
- ↳ Family: Russulaceae
- ↳ Genus: Russula
Synonyms
- Agaricus exalbicans (Pers.) J. Otto
- Agaricus rosaceus β exalbicans Pers.
- Russula depallens (Pers. ex Fr.) Fr. sensu J.Schaeff.
- Russula depallens sensu auct.
- Russula exalbicans (Pers. ex Secr.) Melzer & Zvara
- Russula exalbicans f. decolorata Singer
- Russula pulchella Borszczow
- Russula pulchella I.G. Borshch.
- Russula pulchella f. decolorata (Singer) Vassilkov
Reference Sources
G. Kibby (2021) The Genus Russula in Great Britain. Geoffrey Kibby.
