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:(Fries ex. Fries) Fries 
 Synonyms and close species:C: R. fellea 
 Information given by author(s):Ingratae felleinae
not seen life
Type : 50-402
 
 Host(s):Coniferous (Picea excelsa) 
 Taxon name_Mycobank:
 
 Bibliography:
 

Macro-characters

 
Stipe
 Width of stipe:20 - 30 
 Veil:Absent 
 Form of base of stipe:Not radicate 
 Form of stipe:Straight/centrally inflated 
 Context of stipe:Partly hollow to solid/both 
 
Main color(s) of stipe::
grey/black yes
brown no
white yes
yellow/cream no
blue no
 
orange no
red/pink variable
purple/vinaceous no
green no
   
 
 Length of stipe:65 - 125 
 
Pileus
 Type of pileipellis:Smooth 
 Striations of pileus:Absent to weak or both 
 Viscosity of pileus:Variable 
 Form of center of pileus:Concave/depressed 
 Separability of pileus:Medium to complete or both 
 
Thickness of flesh of pileus
 
Main color(s) of pileus::
grey/black yes
brown yes
white no
yellow/cream no
blue no
 
orange no
red/pink no
purple/vinaceous no
green no
   
 
 Diameter of pileus:50 - 100 
 
Lamellae
 Spacing of lamellae:Close 
 Number of lamellulae:Variable or equal number 
 Furcation of lamellae:At the stipe/everywhere/var. 
 Color of ridges of lamellae:Fully concolorous with faces 
 Attachment of lamellae:Free 
 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:8 
 Odor:Variable/weak and pleasant 
 Flavor of flesh:Bitter, acrid, pungent 
 
Color changes
 Fruit body turns green/blue with age:Not turning green/blue 
 Fruit body turns red if touched/cut:All/partial/no reddening 
 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:Entire fruit body 
 
Chemical reactions
 FeSO4 test on flesh:Green/green-grey 
 Aniline test on flesh:Red on carp./yellow on lamel. 
 Formol test on flesh:Carmine red 
 
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:8.1 - 10 (10.6) 
 Width of spores:7.1 - 9 (9.6) 
 Amyloid plage:Present 
 Ornamentations in surface view:Irregular 
 Connection(s) between verrucae:Joined by fine and low lines 
 Overall appearance of spores:Partly to complet. retic./both 
 Height of verrucae:Variable from 0 to 2 µm 
 Color of spore deposit:1 
 Pictures from Romagnesi, 1967_Link:
  • 3\216a.jpg
 
 
Basidia
 Length of basidia:(35) 40 - 45 (50) 
 Width of basidia:8 - 10 
 Number of sterigmata per basidium:Four 
 
Pleurocystidia
 Length of pleurocystidia:125 
 Width of pleurocystidia:6.2 - 11 
 Thickness of wall of pleurocystidia:Thin (all structures < 2 µm) 
 Shape of apices of pleurocystidia:Mainly capit./append./acerate 
 Sulfo-vanillin test on pleurocystidia:Blue/black/red/pur./or./brown 
 
Pleurocystidia abundance::
absent no
very dispersed 0-350/mm² no
dispersed 350-700/mm² variable
 
rather abund 700-1500/mm² yes
abundant 1500-3000/mm² variable
very abundant >3000/mm² no
 
 
Marginal cells
 Length of marginal cells:0 
 Width of marginal cells:0 
 
Pileocystidia
 Length of pileocystidia:33 - 100 
 Width of pileocystidia:6.5 - 8 
 
Hyphae of pileus
 Diameter of subpellis hyphae:25 
 Diameter of ends of pileipellis hyphae:1.5 - 3 
 Diameter of primordial hyphae:0 
 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:Absent 
 
Caulocystidia
 Width of caulocystidia:5 - 6