Search on : Russula species



General information

Africa no
North America no
S. and C. America no
Asia no
Australia no
Europe yes
 Synonyms and close species:C: R. curtipes 
 Information given by author(s):insidiosae maculatinae
Type : 54-53
 Host(s):Deciduous (Quercus, Betula, Fagus, Corylus, ...), Coniferous 
 Taxon name_Mycobank:


 Width of stipe:10 - 35 
 Form of base of stipe:Not radicate 
 Form of stipe:Infl. at top/base/straight 
 Context of stipe:Solid, spongy 
Main color(s) of stipe::
grey/black variable
brown yes
white yes
yellow/cream yes
blue no
orange no
red/pink yes
purple/vinaceous no
green no
 Length of stipe:35 - 90 
 Type of pileipellis:Smooth 
 Striations of pileus:Absent to weak or both 
 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 yes
blue no
orange yes
red/pink yes
purple/vinaceous yes
green no
 Diameter of pileus:40 - 105 (130) 
 Spacing of lamellae:Variable 
 Number of lamellulae:Less than lamellae 
 Furcation of lamellae:At the stipe/everywhere/var. 
 Color of ridges of lamellae:Variable in color 
 Attachment of lamellae:Free to adnate/subfree/both 
 Type of lamellar ridges:Entire/smooth 
Main color(s) of lamellae::
grey/black no
brown variable
white no
yellow/cream yes
blue no
orange variable
red/pink no
purple/vinaceous no
green no
 Height of lamellae:5 - 14 
 Odor:Variable/weak and pleasant 
 Flavor of flesh:Sweet to bitter or both 
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:Entire fruit body 
 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:Var./weak on stipe 
Chemical reactions
 FeSO4 test on flesh:Pink/pink-orange/brown-grey 
 Ga´ac test on flesh:Blue/green 
 Phenol test on flesh:Brown/purple/vinaceous 
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


 Length of spores:(7.7) 8.2 - 10 (11.5) 
 Width of spores:(6.5) 7 - 8.7 (10) 
 Amyloid plage:Present 
 Appearance of spores verrucae:Tips acute to rounded/both 
 Ornamentations in surface view:Irregular 
 Connection(s) between verrucae:Crest like/joined fine lines 
 Overall appearance of spores:Partly reticulate 
 Height of verrucae:0.5 < x < 2 µm 
 Color of spore deposit:23 
 Pictures from Romagnesi, 1967_Link:
  • 3\388a1.jpg
  • 3\388a2.jpg
 Length of basidia:38 - 57 
 Width of basidia:(10) 11.5 - 13 
 Number of sterigmata per basidium:Four 
 Length of pleurocystidia:80 - 115 
 Width of pleurocystidia:8 - 13.5 (17) 
 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 ?
dispersed 350-700/mm² ?
rather abund 700-1500/mm² ?
abundant 1500-3000/mm² ?
very abundant >3000/mm² ?
Marginal cells
 Length of marginal cells:0 
 Width of marginal cells:0 
 Differentiation of supra and subpellis:Obvious 
 Size of cells in supra and subpellis:Same in size 
 Width of pileocystidia:(4.2) 5.7 - 8.2 (11.5) 
 Location of pileocystidia:Suprapellis 
 Shape of apices of pileocystidia:Mainly rounded 
Hyphae of pileus
 Diameter of ends of pileipellis hyphae:2.7 - 3.5 
 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