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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:(Singer) Romagnesi 
 Synonyms and close species:S: R. romellii ss french taxonomists
C: R. romellii
R. aurata
 
 Information given by author(s):Polychromae integrinae
Type : 54-283
 
 Host(s):Deciduous 
 Taxon name_Mycobank:
 
 Bibliography:
 

Macro-characters

 
Stipe
 Width of stipe:15 - 22 
 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 yes
white yes
yellow/cream yes
blue no
 
orange no
red/pink no
purple/vinaceous no
green no
   
 
 Length of stipe:30 - 85 
 
Pileus
 Type of pileipellis:Smooth to squamose or both 
 Striations of pileus:Absent 
 Viscosity of pileus:Never viscid nor viscous 
 Form of center of pileus:Conc./plane/conv./umbil./umbo. 
 Separability of pileus:Nil to medium or both 
 
Thickness of flesh of pileus
 
Main color(s) of pileus::
grey/black variable
brown variable
white no
yellow/cream variable
blue no
 
orange no
red/pink yes
purple/vinaceous yes
green no
   
 
 Diameter of pileus:75 - 90 
 
Lamellae
 Spacing of lamellae:Variable 
 Number of lamellulae:Less 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/adnate/free 
 Type of lamellar ridges:Entire/smooth 
 
Main color(s) of lamellae::
grey/black no
brown variable
white no
yellow/cream yes
blue no
 
orange no
red/pink no
purple/vinaceous no
green no
   
 
 Height of lamellae:4 - 10 
 Odor:Variable/weak and pleasant 
 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 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:All/partial/no blackening 
 
Chemical reactions
 FeSO4 test on flesh:Var./pink-brown to green-grey 
 Ga´ac test on flesh:Variable/weak reaction 
 Phenol test on flesh:Brown/purple/vinaceous 
 
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:7.7 - 9 
 Width of spores:6.5 - 7.7 
 Amyloid plage:Present 
 Appearance of spores verrucae:Tips round./truncat./cylindr. 
 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:0 <= x <= 0.5 µm 
 Color of spore deposit:25 
 Pictures from Romagnesi, 1967_Link:
  • 3\360a1.jpg
  • 3\360a2.jpg
 
 
Basidia
 Length of basidia:32 - 50 (60) 
 Width of basidia:8.5 - 13 
 Number of sterigmata per basidium:Two 
 
Pleurocystidia
 Length of pleurocystidia:75 - 90 
 Width of pleurocystidia:(8) 8.5 - 12.5 
 Thickness of wall of pleurocystidia:Thin (all structures < 2 µm) 
 Shape of apices of pleurocystidia:Mainly rounded 
 Sulfo-vanillin test on pleurocystidia:Variable/weak reaction 
 
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:Same in size 
 
Pileocystidia
 Width of pileocystidia:3.2 - 5.5 
 Location of pileocystidia:Suprapellis 
 Shape of apices of pileocystidia:Variable 
 Sulfo-vanillin test on pileocystidia:Variable/weak reaction 
 
Hyphae of pileus
 Diameter of subpellis hyphae:5 - 7 (9) 
 Diameter of ends of pileipellis hyphae:1.2 - 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 - 7 
 Thickness of wall of cheilocystidia:Thin (all structures < 2 µm)