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:Quelet 
 Synonyms and close species:C: R. amoenicolor
R. amoenicolor f. nigrosanguinea
R. amoena
 
 Information given by author(s):Heterophyllae virescentinae stirpe amoena
Type : 58-172
 
 Host(s):Deciduous, Coniferous 
 Taxon name_Mycobank:
 
 Bibliography:
 

Macro-characters

 
Stipe
 Width of stipe:10 - 30 
 Veil:Absent 
 Form of base of stipe:Not radicate 
 Form of stipe:Inflated at top to straight 
 Context of stipe:Partly hollow to solid/both 
 
Main color(s) of stipe::
grey/black no
brown variable
white yes
yellow/cream yes
blue no
 
orange no
red/pink variable
purple/vinaceous yes
green no
   
 
 Length of stipe:37 - 70 
 
Pileus
 Type of pileipellis:Smooth/Squamose/Cracked 
 Striations of pileus:Absent 
 Form of center of pileus:Concave/depressed 
 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 variable
white no
yellow/cream yes
blue no
 
orange no
red/pink variable
purple/vinaceous variable
green no
   
 
 Diameter of pileus:37 - 80 
 
Lamellae
 Spacing of lamellae:Variable 
 Number of lamellulae:Less than lamellae 
 Furcation of lamellae:At the stipe/absent 
 Attachment of lamellae:Adnate to decurrent/subdecur. 
 Type of lamellae:Elastic 
 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:5 - 8 
 Odor:None/pleas./unpleas./w./strong 
 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 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
 Ga´ac test on flesh:Variable/weak reaction 
 Phenol 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 - 9 
 Width of spores:6 - 8 
 Amyloid plage:Absent 
 Appearance of spores verrucae:Tips acute/sharp/pointed (/) 
 Ornamentations in surface view:Irregular to linear or both 
 Connection(s) between verrucae:Crest like/catenulate 
 Overall appearance of spores:Partly to complet. retic./both 
 Height of verrucae:Variable from 0 to 2 µm 
 Color of spore deposit:4 
 Pictures from Romagnesi, 1967_Link:
  • 3\177a1.jpg
  • 3\177a2.jpg
  • 3\177b.jpg
 
 
Basidia
 Length of basidia:50 - 65 
 Width of basidia:10 - 12 
 Number of sterigmata per basidium:Four 
 
Pleurocystidia
 Length of pleurocystidia:0 
 Width of pleurocystidia:0 
 Length of pleurocystidial emergence:0 
 Thickness of wall of pleurocystidia:Pleurocystidia absent 
 Shape of apices of pleurocystidia:Pleurocystidia absent 
 Sulfo-vanillin test on pleurocystidia:Pleurocystidia absent 
 
Pleurocystidia abundance::
absent yes
very dispersed 0-350/mm² variable
dispersed 350-700/mm² no
 
rather abund 700-1500/mm² no
abundant 1500-3000/mm² no
very abundant >3000/mm² no
 
 
Subhymenium
 Subhymenium:Filament. to pseudoparenchym. 
 Differentiation of supra and subpellis:Obvious 
 
Pileocystidia
 Length of pileocystidia:0 
 Width of pileocystidia:0 
 Location of pileocystidia:Pileocystidia absent 
 Septation of pileocystidia:Pileocystidia absent 
 Shape of apices of pileocystidia:Pileocystidia absent 
 Sulfo-vanillin test on pileocystidia:Pileocystidia absent 
 Cresyl blue test on pileocystidia:Pileocystidia absent 
 
Hyphae of pileus
 Diameter of primordial hyphae:0 
 Vacuolar pigments of hyphae of pileus:Variable/weak 
 Membrane pigments of hyphae of pileus:Absent 
 Wall of hyphae of pileus:Thin (<1 µm) 
 Filamentous hyphae of pileus:Absent