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General information

 Substratum:Terricolous 
 
Continent::
Africa no
North America no
S. and C. America no
 
Asia no
Australia no
Europe yes
 
 Authority:(Kromb.) Bres. 
 Synonyms and close species:S: A. chloroides (Kromb.) Bres.,
R. delica v.chloroides (Kromb.) Imai
C: R. delica, R. delicula,
R. brevipes v. acrior Shaffer,
R. chloroides v. glaucophylla Quelet
 
 Information given by author(s):Compactae lactarioidae
Europe: many
Nothern America: may be?
Type: Romagnesi spore deposit no 18-VIII-62
 
 Host(s):Deciduous (Fagus) 
 Taxon name_Mycobank:
 
 Bibliography:
 

Macro-characters

 
Stipe
 Width of stipe:(9) 10 - 30 
 Veil:Absent 
 Form of base of stipe:Not radicate 
 Form of stipe:Inflated at top to straight 
 Context of stipe:Solid, spongy 
 
Main color(s) of stipe::
grey/black yes
brown yes
white yes
yellow/cream yes
blue no
 
orange no
red/pink no
purple/vinaceous no
green yes
   
 
 Length of stipe:(15) 30 - 50 
 
Pileus
 Type of pileipellis:Smooth 
 Striations of pileus:Absent 
 Viscosity of pileus:Never viscid nor viscous 
 Form of center of pileus:Concave/depressed 
 Separability of pileus:Nil (0%) 
 
Thickness of flesh of pileus
 Thickness of flesh of pileus:Thick 
 
Main color(s) of pileus::
grey/black no
brown variable
white yes
yellow/cream yes
blue no
 
orange no
red/pink no
purple/vinaceous no
green no
   
 
 Diameter of pileus:45 - 130 
 
Lamellae
 Spacing of lamellae:Close 
 Number of lamellulae:More than lamellae 
 Furcation of lamellae:At or close to the stipe only 
 Color of ridges of lamellae:Fully concolorous with faces 
 Attachment of lamellae:Decurrent 
 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 yes
   
 
 Height of lamellae:3.5 - 6 (7) 
 Odor:Strong and unpleasant/pleasant 
 Flavor of flesh:Sweet to bitter or both 
 
Color changes
 Fruit body turns green/blue with age:Entire fruit body 
 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:Not turning grey 
 
Chemical reactions
 FeSO4 test on flesh:No react. to pink/weak react. 
 Ga´ac test on flesh:Blue/green 
 
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 - 10 (11) 
 Width of spores:6 - 8.7 
 Amyloid plage:Present 
 Appearance of spores verrucae:Tips acute to rounded/both 
 Connection(s) between verrucae:Joined by fine and low lines 
 Overall appearance of spores:Not to partly reticulate/both 
 Height of verrucae:0.5 < x < 2 µm 
 Color of spore deposit:2 
 Pictures from Romagnesi, 1967_Link:
  • 3\46a1.jpg
  • 3\46a2.jpg
  • 3\46b.jpg
 
 
Basidia
 Length of basidia:50 - 67 
 Width of basidia:(9) 10 - 12.5 (15) 
 Number of sterigmata per basidium:Four 
 
Pleurocystidia
 Length of pleurocystidia:50 - 130 
 Width of pleurocystidia:6.5 - 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:Variable/weak reaction 
 
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 
 
Subhymenium
 Subhymenium:Pseudoparenchymatous 
 Differentiation of supra and subpellis:Absent 
 Size of cells in supra and subpellis:Same in size 
 Gelification of subpellis:Not gelified (no gel. matrix) 
 
Pileocystidia
 Location of pileocystidia:Trama/supra/subpellis 
 Septation of pileocystidia:Usually aseptate 
 Sulfo-vanillin test on pileocystidia:Variable/weak reaction 
 
Hyphae of pileus
 Diameter of subpellis hyphae:3 - 6 
 Diameter of ends of pileipellis hyphae:3 - 6 
 Diameter of primordial hyphae:0 
 Membrane pigments of hyphae of pileus:Variable/weak 
 Wall of hyphae of pileus:Thin (<1 µm) 
 Filamentous hyphae of pileus:Absent 
 
Caulocystidia
 Thickness of wall of cheilocystidia:Thin (all structures < 2 µm)