Search on : Russula species

 


    

General information

 Substratum:Terricolous 
 
Continent::
Africa no
North America yes
S. and C. America no
 
Asia variable
Australia no
Europe yes
 
 Authority:(Fr. ex. Pers.) Fr. 
 Information given by author(s):Ingratae foetentinae
Comon
Type : 51-75
 
 Host(s):Deciduous, Coniferous 
 Taxon name_Mycobank:
 
 Bibliography:
 

Macro-characters

 
Stipe
 Width of stipe:12 - 50 
 Veil:Absent 
 Form of base of stipe:Not radicate 
 Form of stipe:Straight/centrally inflated 
 Context of stipe:Partly to completely hollow 
 
Main color(s) of stipe::
grey/black yes
brown yes
white yes
yellow/cream no
blue no
 
orange no
red/pink no
purple/vinaceous no
green no
   
 
 Length of stipe:(43) 55 - 110 (160) 
 
Pileus
 Type of pileipellis:Smooth 
 Striations of pileus:Weak to strong or both 
 Viscosity of pileus:Variable 
 Form of center of pileus:Concave/convex/umbonate 
 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 variable
brown variable
white no
yellow/cream yes
blue no
 
orange no
red/pink no
purple/vinaceous no
green no
   
 
 Diameter of pileus:(45) 50 - 170 
 
Lamellae
 Spacing of lamellae:Distant 
 Furcation of lamellae:Everywhere (min 3 to 4/carp.) 
 Color of ridges of lamellae:Variable in color 
 Attachment of lamellae:Free to adnate/subfree/both 
 Type of lamellae:Fragile/breakable 
 Type of lamellar ridges:Entire/smooth 
 
Main color(s) of lamellae::
grey/black no
brown variable
white yes
yellow/cream yes
blue no
 
orange no
red/pink no
purple/vinaceous no
green no
   
 
 Height of lamellae:8 - 14 
 Odor:Strong and unpleasant 
 Flavor of flesh:No taste/sweet/bitter/burning 
 
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:Stipe only 
 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 
 
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:(7.5) 8.5 - 10.25 (11.5) 
 Width of spores:6.7 - 8.7 
 Amyloid plage:Variable/partial/weak 
 Appearance of spores verrucae:Tips acute/sharp/pointed (/) 
 Ornamentations in surface view:Round bases 
 Connection(s) between verrucae:Joined by fine and low lines 
 Overall appearance of spores:Not reticulate 
 Height of verrucae:0.5 < x < 2 µm 
 Color of spore deposit:6 
 Pictures from Romagnesi, 1967_Link:
  • 3\200a1.jpg
  • 3\200a3.jpg
 
 
Basidia
 Length of basidia:50 - 60 
 Width of basidia:10 - 13.5 
 Number of sterigmata per basidium:Four 
 
Pleurocystidia
 Length of pleurocystidia:60 - 85 (150) 
 Width of pleurocystidia:8.5 - 10 
 Thickness of wall of pleurocystidia:Thin (all structures < 2 µm) 
 Shape of apices of pleurocystidia:Variable 
 Sulfo-vanillin test on pleurocystidia:Blue/black/red/pur./or./brown 
 
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
 Differentiation of supra and subpellis:Obvious 
 Size of cells in supra and subpellis:Different in size 
 Gelification of subpellis:Strongly gelified 
 
Pileocystidia
 Location of pileocystidia:Suprapellis 
 Shape of apices of pileocystidia:Mainly capit./append./acerate 
 Sulfo-vanillin test on pileocystidia:No color changes 
 
Hyphae of pileus
 Diameter of subpellis hyphae:2.7 - 6 
 Diameter of ends of pileipellis hyphae:2 - 3.5 
 Diameter of primordial hyphae:0 
 Vacuolar pigments of hyphae of pileus:Present 
 Wall of hyphae of pileus:Thin (<1 µm) 
 Filamentous hyphae of pileus:Absent