Search on : Russula species

 


    

General information

 Substratum:Terricolous 
 
Continent::
Africa no
North America no
S. and C. America no
 
Asia no
Australia no
Europe yes
 
 Authority:Velen. 
 Synonyms and close species:C: R. lepida
R. zvarae v. salmonicolor
R. erubescens
 
 Information given by author(s):Incrustatae lilacinae
Rare
Type : 57-30
 
 Host(s):Deciduous (Fagus, Quercus) 
 Taxon name_Mycobank:
 
 Bibliography:
 

Macro-characters

 
Stipe
 Width of stipe:6 - 15 
 Veil:Absent 
 Form of base of stipe:Not radicate 
 Form of stipe:Infl. at top/base/straight 
 Context of stipe:Solid/partly hol./compl. hol. 
 
Main color(s) of stipe::
grey/black no
brown no
white yes
yellow/cream variable
blue no
 
orange no
red/pink yes
purple/vinaceous no
green no
   
 
 Length of stipe:40 - 48 
 
Pileus
 Type of pileipellis:Smooth 
 Striations of pileus:Absent to weak or both 
 Viscosity of pileus:Never viscid nor viscous 
 Form of center of pileus:Concave to plane or both 
 Separability of pileus:Nil to medium or both 
 
Thickness of flesh of pileus
 Thickness of flesh of pileus:Thick 
 
Main color(s) of pileus::
grey/black no
brown yes
white no
yellow/cream variable
blue no
 
orange no
red/pink yes
purple/vinaceous yes
green no
   
 
 Diameter of pileus:(25) 50 - 70 
 
Lamellae
 Spacing of lamellae:Variable 
 Furcation of lamellae:Everywhere/absent 
 Color of ridges of lamellae:Fully concolorous with faces 
 Attachment of lamellae:Free to adnate/subfree/both 
 Type of lamellar ridges:Entire/smooth 
 
Main color(s) of lamellae::
grey/black no
brown no
white yes
yellow/cream yes
blue no
 
orange no
red/pink no
purple/vinaceous no
green no
   
 
 Height of lamellae:6 - 7.5 
 Odor:Variable/weak and pleasant 
 Flavor of flesh:No taste, sweet 
 
Color changes
 Fruit body turns green/blue with age:Not turning green/blue 
 Fruit body turns red if touched/cut:Not turning red 
 Fruit body turns yellow-brown with age:All/partial/no color change 
 Fruit body turns br. yellow if touched:Not turning bright yellow 
 Fruit body turns black with age/touched:Not blackening 
 Fruit body turns grey with age:Not turning grey 
 
Chemical reactions
 FeSO4 test on flesh:No react. to pink/weak react. 
 Ga´ac test on flesh:Variable/weak reaction 
 
Latex
 Latex:Absent 
 
Color(s) of fresh latex::
grey/black no
brown no
white no
yellow/cream no
blue no
 
orange no
red/pink no
purple/vinaceous no
green no
   
 
 
Color(s) of dry latex::
grey/black no
brown no
white no
yellow/cream no
blue no
 
orange no
red/pink no
purple/vinaceous no
green no
   
 

Micro-characters

 
Spores
 Length of spores:6.5 - 8 (9) 
 Width of spores:5.5 - 6 (6.7) 
 Amyloid plage:Present 
 Appearance of spores verrucae:Tips round./truncat./cylindr. 
 Ornamentations in surface view:Irregular 
 Connection(s) between verrucae:Crest like/joined fine lines 
 Overall appearance of spores:Not/part./complet. reticulate 
 Height of verrucae:0 <= x <= 0.5 µm 
 Color of spore deposit:2 
 Pictures from Romagnesi, 1967_Link:
  • 3\273a1.jpg
  • 3\273a2.jpg
 
 
Basidia
 Length of basidia:32 - 47 (50) 
 Width of basidia:9 - 11.5 
 Number of sterigmata per basidium:Four 
 
Pleurocystidia
 Length of pleurocystidia:70 - 80 
 Width of pleurocystidia:8.5 - 13 
 Thickness of wall of pleurocystidia:Thin (all structures < 2 µm) 
 Shape of apices of pleurocystidia:Mainly capit./append./acerate 
 Sulfo-vanillin test on pleurocystidia:Variable/weak reaction 
 
Pleurocystidia abundance::
absent no
very dispersed 0-350/mm² variable
dispersed 350-700/mm² yes
 
rather abund 700-1500/mm² variable
abundant 1500-3000/mm² no
very abundant >3000/mm² no
 
 
Marginal cells
 Length of marginal cells:0 
 Width of marginal cells:0 
 
Subhymenium
 Subhymenium:Filament. to pseudoparenchym. 
 Differentiation of supra and subpellis:Obvious 
 Size of cells in supra and subpellis:Different in size 
 
Hyphae of pileus
 Diameter of primordial hyphae:2.5 - 5 
 Vacuolar pigments of hyphae of pileus:Present 
 Membrane pigments of hyphae of pileus:Absent 
 Wall of hyphae of pileus:Thin (<1 µm) 
 Filamentous hyphae of pileus:Present 
 
Caulocystidia
 Length of caulocystidia:0 
 Width of caulocystidia:0